Features: Effectively hold propellers and blades to the fuselage, preventing accidential damages during transport and storage. Soft ABS material, it feels comfortable, does not damage the propellerrs, and the host. Small size, great effect, prevent foreign objects from harming the blade and the main engine, and completely surround the blade for fixed for protection. Convenient to install, and it can be quickly installed and disassembled by pulling it apart. Specifications: Material: ABS Applicable Model: for Mini 3 Pro Color: for Grey Net Weight: about 8.4g Propeller Holder Top: Approx. 8x2.9x3.5 for cm/3.14x1.14x1.37 inch Upper Beam Propeller: Approx. 8x3.5x3.2 for cm /3.14x1.37x1.25 inch Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Propeller Strap