1 X Self-tightening 4pcs 2 Pair Cw CCW Blades Propellers for DJI Phantom Vision 2 Quadcopter by GoolRC Set of 4 Self-tightening Propellers for DJI Phantom 1 / 2 / Vision Quadcopter. Size 9.4x4.3, The same specs as the factory props of the newest Phantom 2 Vision. These props are self-tightening props with built in locking nuts, you do not need any locking nuts or tools, simple spin it on and fly. Model: 9443 Material: Nylon Size: 24 * 4 * 1cm / 9.4 * 1.6 * 0.4