Low-Noise Propellers for 2 Pro/ 2 Drone With low noise design Each blade has undergone a precise dynamic balance test, resulting in less flight noise, higher aerodynamic efficiency, lower power consumption, and improved endurance. and easy to install,Just a few seconds to install and remove The blade continues the classic quick disassembly design, just insert the blade into the corresponding seat and press it to the bottom, rotate the blade along the locking direction, and the blade will spring up and lock after releasing. Deliver a quieter flight with increased efficiency and extended flight time.These propellers also feature a quick release design to help make changes quick and easy. Material:ABS+PC colour:black Package Contents: 4 pair * Propellers Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.