Features

• EASY OPERATION: it's ready to run. This one burns BUTANE (which is often used in lighters). It's quite easy to operate: fill the tanks with butane, open the valves on the tanks, then press buttons beneath the tank to light up the lamp; after warming up for about 30 seconds, turn the propeller and it will rotate rapidly and smoothly. Just within 5 minutes, people around the machine will be surprised and wonder how it works. A great desktop toy, TONS OF FUN!
• GRACEFUL & UNIQUE DESIGN: This's the only one stirling engine with 16 Cylinders (8 Heating + 8 Cooling). I've played lots of engines in the past 12 years and this's one of the few engines that reminds me how excited when I got my first one. It exhibits real forward thinking physics and engineering, much more than just a toy that runs. I cannot say its workmanship is the best but it's OK; if you take the complexity of this engine and the price into consideration, then it's one of the best.
• GREAT CONVERSATION STARTER: If you want buy one for science project or so, come on, we have lots of cheaper engines, you DON'T need this one. Buy one as gift for yourself, families, boyfriend or friends(?we have cheaper engines!). This's a well-designed and crafted mechanical toy suitable for adults with kid's heart. It's a great decoration for the desk, and definitely a great conversation starter.
• Overall Size: 8.9x3.9x5.5 inch(LxWxH); Weight: 1.7 lb; Main material: 6061 aluminum, 304 stainless steel, wood.
• Before placing order, please notice: 1. it burns BUTANE and we DO NOT provide that. Make sure you have a tin of butane before operating the engine. 2. This engine is NOT FOR KIDS. 3. Each engine will be tested before shipping so you'll find it's BURNED. 4. As a high speed engine, VIBRATION IS INEVITABLE, if`this is what matters you, then find another engine. DjuiinoStar stands behind its products, buy with confidence!
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