DJI Bundle Set Original Lastest Upgraded Props 1345s Self-locking Carbon Fiber Reinforced Quick Release Propellers Part 52 and 22 Quick Release Rotor Adapter Lock (CW+CCW) 4 Pcs for Inspire 1 Quadcopter (this version does not require DJI safety lock) 10% cheaper than buying separately. Compatible with DJI Inspire 1 quadcopter 1345s Propellers: Enhances reliability during flight. Features a new locking mechanism that prevents your propellers from becoming loose during flight. Perfectly suited to the motor deceleration functions native to your Inspire 1 (this version does not require DJI safety lock) Quick Release Rotor Adapter: Patented rotor lock mechanism ensures reliable locking and tool-free mounting and release at the same time. Fool-proof design for CW and CCW blades Package included: CW Propeller x 2; CCW Propeller x 2; CW Quick Release Rotor Adapter x 2; CCW Quick Release Rotor Adapter x 2 Free touch screen stylus pen is included (Random color shipped)