Features: Used in Tello design- for additional protections. It largely prevents the propeller from scratching people or objects. Light and compact-, easy to disassemble and assemble, effectively ensure flight safety. Isolate the propellers to ensure flight safety. Be sure to correctly match the propeller shield- orientation to the aircraft orientation. When using square protective cover, do not use the eight-way tumble- function. Specifications: Item:Propellers Guard Main material: polypropylene Suitable products: Used for Tello Size:approx 17.7x17x3.5cm/6.97x6.69x1.38in Note: The use of this accessory will increase the aircraft load, reduce the aircraft stay airtime-, please return to the aircraft in advance; before use, please ensure that the installation is firm; before use, please read the instructions carefully. Package includes: 1PC Square protective cover