Hobby Signal 1345 Quick Release Self-lock Self-tightening CW&CCW Propellers Carbon Fiber Prop for DJI Inspire 1 Aluminum magnesium alloy, CNC processing, high strength, light weight High power utilization of motor output 1345 carbon propellers for DJI Inspire 1 Length: 13in Package Includes: 1 pair of 1345 Propellers, 1 pair of 1345 Propeller Mounts