Propeller Guards TopLiok Snap On Off Prop Guards for DJI Phantom 3 Professional Advance Bumper 1.The Propeller Guards is convenient to install and unload,which will be the best 2.Comes with 4 prop protector guard bumper and a set of install tools, easy installation and operation. 3.Prop guard is essential kit for your quadcopter camera drone. 4.Protect your propellers from collision, especially for beginners. 5.With these propeller guard, your phantom will never drop like stone again, thus your phantom will last longer.