1.9cc double-piston gasoline engine model, a metal collectible perfect for STEM education. This is a working engine model. The price is 44,000 yen. Price negotiation is OK! - Model: Eachine EMI Micro Engine Model - Type: Double-piston gasoline engine - Size: 1.9cc - Application: For STEM education - Material: Metal - Base: Wooden - Year: 2021 - Seller: Banggood It has hardly been touched since purchase, and has not been started, so it is almost new. For instructions on how to use it, please refer to the operating video on YouTube. Thank you.