APPLICABLE MODELS: Designed for Mini 4 Pro Fly More Combo, propeller strap stabilizes and protects the fuselage and propeller from crushing, maintaining perfect appearance and stability during transportation. QUICK INSTALLATION: Buckle design for easy installation and removal. Mounts the propeller that will be secured to the propeller to prevent damage to the blades during storage. SOFT PLASTIC STRAP: The propeller retainer is made of soft plastic, protects the drone's motors, propellers, and sensors, won't scratch the fuselage and slim paddles, attach the propellers protector to your drone with one hand. COMPACT AND PORTABLE: After folding the drone, the straps secure its front and rear propellers, which makes it easier to fit them into different storage boxes, such as soft bags, soft pockets, DIY storage boxes, EVA boxes, waterproof hard shells and so on. PACKAGE INCLUDES: Product includes 1x for Mini 4 Pro propeller mount (propeller mount only, drone and other accessories are not included.