Andoer Upgrade Version 250mm Mini FPV Quadcopter Glass Carbon Fiber Frame Kit for QAV250 Materials: 3k Weave Carbon Fiber Maximum Propeller: 6" (Suggest 5030 propeller) Fasteners: Stainless Steel & Red Metal 8/8 Size: 220mm diagonally, 175mm wide, 130mm long motor-to-motor; about 1/2 the size of a regular quadcopter Motor Mount: M2 12mm - 16mm (Tiger MN1806 2300kv, RCX 1804 2400kv), M3 19mm (Tiger MT2206 2000kv, Sunnysky X2204 2300kv)