JUSTO Set of 4 Quick Disconnect 9 Inch Props Protector Tool Free Snap On/Off Quick-release Propeller Guard for DJI Phantom 3 Professional / Advanced / Standard Quadcopter - white Compatible with DJI Phantom 3 Stanard / Advanced / Professional quadcopter Designed to protect your propellers during collisions, they help you fly with confidence, whether you are a beginner or an expert quadcopter pilot Ideal for a new pilot. Convenient for connecting and disconnecting the guards indoor or in crowded place Fix the base piece with screws (included) under the motor. The quick-disconnect base pieces remain attached below the motors and the guards quickly and easily snap off without tools Package included: Propeller Guard x 4; Screwdriver x 1; Screws; Safety Cord (DJI Phantom 3 is NOT included)