Features: Following the principlesof material mechanics, it has a strong impact resistant structure. After precise calculation and repeated testing, this lightweight, anti-collision, and impact resistant anti-collision rings have been developed. Multiarch structure, collision resistant and impact resistant, and upgraded for safercollision resistance. Connected from beginningto end, stable and anti shaking. The front and rear circlesare connected and integrated, reducing resonance and making it more stable. Snap structure, easy and fast installation and disassembly. Isolating theblades and protecting the propeller can greatly prevent it from scratching people or objects. Specifications: Material: ABS+PC Applicable Models: for MINI 4 PRO Color: As Pictures Product size:As Pictures Note: 1.Does not include drones,Drones, storage bags, 2.Transition: 1cm=10mm=0.39inch, 3.Since the size and weight are manually measured, due to different measurement methods, there may be a certain error between the weight and size of the product, but this error does not affect the normal use of the product, please confirm that you know and acceptthe error before purchasing,, 4.Due to the difference between different monitors, the picture may not reflect the actual color of the item,please make sure you do not mind before ordering, Thank you. Package includes: 1Set Propeller Cover