Hand Throwing Assembly Bubble Flight Model DIY Handmade Plane Model Description: Item Name: Hand Throwing Assembly Bubble Flight Model Manufacturer: Hangzhou Zhongtian Model Company Feature:1. Simple installation, glide performance outstanding, suitable for projection distance race.2. Learning knowledge of aerodynamics 3. Nurture handcraft Specification: Body Length: 380mmwingspan:420mm Package Included:1x Assembly Bubble Flight Model 1x Detailed instruction