These Quick Release Propellers Guards are designed for install install and remove the propeller guards with one fast, simple movement. These Quick Release Propellers Guards For Mavic Air are a complete set of four, designed to cover each drone propeller. Durable plastic: Strong yet lightweight propeller guards keep sensitive items away from spinning propellers Mavic Air: Works with alI Mavic Air drones and the DJI Mavic Air Landing gear Install the propeller guards quickly and easily.