Red - SH-19 Freestyle Piston Stirling Engine Model Science Technology Puzzle Novelty Toys

Specification:Model: SH-19Product Name: Freestyle Piston Stirling Engine ModelSize: 100*100*100mmWeight: 350gApplicable: Children's science projects, physics and mechanical learning, classroom teacher demonstration accessories, birthday gifts for friends, family, parents, children, etcNote:1.No lubricating oil is allowed to be added to the cylinder piston;2.Product data are all manually measured, there may be slight errors;3. The color of the base may vary slightly, please refer to the actual product.Feature: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 th