1、The propeller guards can effectively protect propellers from breaking or bumping. 2、While protecting the propeller, it can prevent the propeller from scratching people or objects. 3、Eco-friendly plastic material, lightweight, anti-impact and durable for long time use. 4、Convenient to install and remove, also lightweight will not add burden to the drone. 5、With high precision hole position and more scientific force, perfect matching for 10" and 11" propeller drone. Features: 1. The propeller guards can effectively protect propellers from breaking or bumping. 2. While protecting the propeller, it can prevent the propeller from scratching people or objects. 3. Eco-friendly plastic material, lightweight, anti-impact and durable for long time use. 4. Convenient to install and remove, also lightweight will not add burden to the drone. 5. With high precision hole position and more scientific force, perfect matching for 10" and 11" propeller drone. Specification: Condition: 100% Brand New Item Type: RC Drone Accessory Material: Plastic Color: As Pictures Shown Package Size: Approx. 33 * 22 * 3cm/13 * 8.7 * 1.2in Weight: Approx. 145g Fitment: for F450 F550 S550 Quadcopter, for 10" and 11" Propeller Package List: 4 * Blade Protectors 1 * Propeller Accessory 1 * Screw Pack