Features 1、Long Service Life: The body of the stirling engine model is mainly made of stainless steel material, which has the characteristics of firmness and durability. 2、Wooden Base: The base of the stirling electricity generator is made of premium beech material, which can highlight the noble texture of the whole machine. 3、Easy to Use: Fill the alcohol combustor with your 95 percent alcohol and light it. Let the light burn the round ended cylinder for about 20 seconds, then give the wheel a gently push, it will run like a charm. 4、Applicability: The stirling engine can be used as a tabletop decoration, as well as for children's science projects, physics and mechanical learning, and classroom teacher demonstration. 5、A Perfect Present: This educational stirling engine toy is an amazing and wonderful item, and the stirling engine toy can be a perfect present for your family or friends. Specifications Item Type: Stirling engine Material: Beech, stainless steel Weight: Approx. 382g/13.5oz Product Size: 10x10x10cm/3.9x3.9x3.9in Applicable: Children's science projects, physics and mechanical learning, classroom teacher demonstration accessories, birthday gifts for friends, family, parents, children, etc Package List 1 x Stirling Engine 2 x Accessories 1 x Alcohol Bottle