We can supply you with unique and useful educational products: Full Metal assembly model kits(DIY). These products are very high quality, operationally correct machinery models that are well suited for teaching the underlying principles of how things work. The kits are in DIY (Do it yourself) form with beautifully illustrated assembly instructions. The products are educational in nature as well as fulfilling the needs of the advanced hobbyist. All products are designed, patented and manufactured by ourselves.Children could acquire the precious Hands-on ability and basic STEM skills. Our assembly models perfectly present the mechanical structure. So children could also get operation principles knowledge of the real machine.