XT-XINTE 9443 Self-Tightening Carbon Propellers + Props Guard Bumper Protector for DJI Phantom 2 Vision 9443 Self-Tightening Carbon Propellers + Props Guard Bumper Protector for DJI Phantom 2 Vision Product included: 1 set Props Guard Bumper Protector 2 Pair 9443 Carbon Fiber Propellers Radian: 155.0 degree, Radius:112.32mm. Protect your phantom from bad landing,scratching a car,cutting a child,dropping like a stone. You can set up some gaskets to make the protector stable. The Self-Tightening Caps\' color will be changed,but same function