S500 PCB 500mm Upgrade  Quadcopter Frame Kit w/Landing GearIts also include carbon fiber tube for Gimbal MountingFeatures:- F550 upgrade quadcopter- Learned arm design from DJI S800 EVO, and enhanced- good work with Gopro Hero 3 ,2 Axis brushless gimbal for FPV- PCB Center plate with solder point- Frame only, no electronic parts. Specifications:Wheelbase: 500mmWeight: 400-410 gram with legs Weight 335 gram with out legsMotor suggest: 2212,2216,2826,2830,3508Prop suggest: 10 inches, 11inches,12 inches  Package Included:- S500 quadcopter frame kit *1