DJI Bundle Set Original Lastest Upgraded Props 1345s Self-locking Carbon Fiber Reinforced Quick Release Propellers Part 52 and Ф22 Quick Release Rotor Adapter Lock (CW+CCW) 4 Pcs for Inspire 1 Quadcopter (this version does not require DJI safety lock)

This DJI Bundle Set Original Lastest Upgraded Props 1345s Self-locking Carbon Fiber Reinforced Quick Release Propellers Part 52 and Ф22 Quick Release Rotor Adapter Lock (CW+CCW) 4 Pcs for Inspire 1 Quadcopter (this version does not require DJI safety lock) features a new locking mechanism that prevents your propellers from becoming loose during flight.