Scaled to fit 3/4 size bass with a playing length of 41 3/4 inches (1060mm), these medium tension strings are optimized for a majority of players.

Helicore Orchestral bass strings are multi-stranded steel core strings that produce a warm tone quality with excellent bow response. The core design makes for strings that are very easy to play under the left hand. Damping is optimized for arco use, but they also work well for pizzicato applications where a very warm, less-sustaining sound is desired.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Sized to fit medium-scale viola (body length 15-15 3/4 inches) with a playing length of 14 1/8 inches (360mm), these medium tension strings are optimized to the needs of a majority of players. Packaged in uniquely-designed sealed pouches providing unparalleled protection from the elements that cause corrosion.

Helicore viola strings are crafted with a multi-stranded steel core, resulting in optimal playability while producing a clear, warm tone. The smaller string diameter provides quick bow response. Premium quality materials combined with skilled workmanship produces strings known for excellent pitch stability and longevity.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Sized to fit long-scale viola (body length 16-16 1/2 inches) with a playing length of 15 inches (380mm), these medium tension strings are optimized to the needs of a majority of players. Packaged in uniquely-designed sealed pouches providing unparalleled protection from the elements that cause corrosion.

Helicore viola strings are crafted with a multi-stranded steel core, resulting in optimal playability while producing a clear, warm tone. The smaller string diameter provides quick bow response. Premium quality materials combined with skilled workmanship produces strings known for excellent pitch stability and longevity.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Scaled to fit 3/4 size bass with a playing length of 41 3/4 inches (1060mm), these light tension strings allow for easier bow response.

Helicore Hybrid bass strings are multi-stranded steel core strings that produce a moderately warm tone quality. The core design makes for strings that are very easy to play under the left hand. Damping is optimized to create a good balance between pizzicato sustain and bow response, allowing for good performance across many playing styles, from symphonic to jazz or bluegrass.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Scaled to fit 4/4 size violin with a playing length of 13 inches (328mm), these medium tension strings are optimized to the needs of a majority of players. The HE310-5 (five string) set includes a properly sized and gauged low C string for violins designed to use five strings. The E string included with the HE310-5 set is a plain steel E (tin-plated high-carbon steel) with no winding. Packaged in uniquely-designed sealed pouches providing unparalleled protection from the elements that cause corrosion.

Helicore cello strings are crafted with a multi-stranded steel core, resulting in optimal playability while producing a clear, warm tone. The smaller string diameter provides quick bow response. Premium quality materials combined with skilled workmanship produces strings known for excellent pitch stability and longevity.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Scaled to fit 1/2 size violin with a playing length of 11 1/2 inches (290mm), these medium tension strings are optimized to the needs of a majority of players. The E string included with the H310 set is a plain steel E (tin-plated high-carbon steel) with no winding. Packaged in uniquely-designed sealed pouches providing unparalleled protection from the elements that cause corrosion.

Helicore violin strings are crafted with a multi-stranded steel core, resulting in optimal playability while producing a clear, warm tone. The smaller string diameter provides quick bow response. Premium quality materials combined with skilled workmanship produces strings known for excellent pitch stability and longevity.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Scaled to fit 1/2 size violin with a playing length of 11 1/2 inches (290mm), these medium tension strings are optimized to the needs of a majority of players. This is a plain steel E (tin-plated high-carbon steel) with no winding. Packaged in uniquely-designed sealed pouches providing unparalleled protection from the elements that cause corrosion.

Helicore violin strings are crafted with a multi-stranded steel core, resulting in optimal playability while producing a clear, warm tone. The smaller string diameter provides quick bow response. Premium quality materials combined with skilled workmanship produces strings known for excellent pitch stability and longevity.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Scaled to fit 3/4 size cello with a playing length of 25 1/2 inches (650mm), medium tension strings are optimized to the needs of a majority of players.

Helicore cello strings are crafted with a multi-stranded steel core, resulting in optimal playability while producing a clear, warm tone. The smaller string diameter provides quick bow response. Premium quality materials combined with skilled workmanship produces strings known for excellent pitch stability and longevity.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Scaled to fit 1/2 size violin with a playing length of 11 1/2 inches (290mm), these medium tension strings are optimized to the needs of a majority of players. This A string is aluminum wound. Packaged in uniquely-designed sealed pouches providing unparalleled protection from the elements that cause corrosion.

Helicore violin strings are crafted with a multi-stranded steel core, resulting in optimal playability while producing a clear, warm tone. The smaller string diameter provides quick bow response. Premium quality materials combined with skilled workmanship produces strings known for excellent pitch stability and longevity.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Scaled to fit 3/4 size violin with a playing length of 12 1/4 inches (310mm), these medium tension strings are optimized to the needs of a majority of players. This D string is aluminum wound. Packaged in uniquely-designed sealed pouches providing unparalleled protection from the elements that cause corrosion.

Helicore violin strings are crafted with a multi-stranded steel core, resulting in optimal playability while producing a clear, warm tone. The smaller string diameter provides quick bow response. Premium quality materials combined with skilled workmanship produces strings known for excellent pitch stability and longevity.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Scaled to fit 3/4 size bass with a playing length of 41 3/4 inches (1060mm), these light tension strings allow for easier bow response. This E string is nickel wound.

Helicore Pizzicato bass strings are multi-stranded steel core strings that produce a brighter tone quality than the rest of the Helicore bass line. The core design makes for strings that are very easy to play under the left hand. Damping is reduced to create maximum sustain and "growl".

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Scaled to fit 3/4 size bass with a playing length of 41 3/4 inches (1060mm), these medium tension strings are optimized for a majority of players.

Helicore Solo bass strings are tension-adjusted specifically for A-E-B-F# scordatura solo tuning, one whole-step higher than standard tuning. They are multi-stranded steel core strings that produce a warm tone quality with excellent bow response. The core design makes for strings that are very easy to play under the left hand. Damping is optimized for arco use, making them ideal for solo performance.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.

Scaled to fit 1/8 size bass with a playing length of 31 3/4 inches (805mm), these medium tension strings are optimized for a majority of players. This E string is nickel wound.

Helicore Orchestral bass strings are multi-stranded steel core strings that produce a warm tone quality with excellent bow response. The core design makes for strings that are very easy to play under the left hand. Damping is optimized for arco use, but they also work well for pizzicato applications where a very warm, less-sustaining sound is desired.

D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative, environmentally friendly packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.