1、[High Quality Material] Stirling engine model is made of high quality aluminum material and fine craftsmanship to avoid rusting of the model and prolong its service life. 2、[Product Exquisite] This Sterling physics model is a exclamatory and fantastic product, not only is it beautifully styled, its elegant gift packaging also makes it gorgeous and stylish. 3、[Easy To Assemble] You can assemble it with your friends and family or family kids to enjoy the fun of DIY and also to enhance the relationship between each other. 4、[Wide Range Of Applications] It can be used as a great gift for children's science projects, physics mechanical learning, classroom teaching props, birthday gifts for friends and family. 5、[Intuitive Presentation] Through hands on operation, you can observe the whole engine operation process and master the working principle of low temperature Stirling engine more intuitively. Item Type: Engine Model Material: Aluminum Range of Application: Gifts, Scientific Toys, Physical Models Gross Weight: Approx. 241g/8.5oz 1 x Base 1 x Flywheel 1 x Instruction Manual 1 x Air Cylinder 1 x Glass Cover 2 x Collar 1 x Hose 1 x Small Wrench 2 x Bracket 25 x Accessories