ITEM NAME:Removable Quick Release Propeller Props Protector Guard Description: Easy to install, durable and lightweight, a must for beginners and junior users. To avoid bad landing such as scratching a car, cutting a child, dropping like a stone. When hit wall, tree or whatever, as long as the propellers rotate, your phantom will always keep balanced. It will stay in air instead of dropping down. With these prop protectors, your phantom will never drop like stone again, thus your phantom will last longer. Compatible with dji phantom 4 Specification: Material: Nylon and carbon fiber Product Size: 24.5*15.5cm / 9.6*6.1inch Package Includes: 4 Pieces Propeller Protectors(Drone Excluded) SKU: DMO0015818361002358.4 Pieces Propeller Protectors(Drone Excluded). With these prop protectors, your phantom will never drop like stone again, thus your phantom will last longer. When hit wall, tree or whatever, as long as the propellers rotate, your phantom will always keep balanced.