Made of High Quality Meterial, Stronger And More , Improve The Appearance
Easy to use,Easy to replace
Voltage: 6-8.4V
Max RPM: 20000

Weight: 50g
Suitable for 540 550 3650 3660 3670 36-38mm motor
Colour:1:red
Material:Metal

Package Contents:
1 x RC Car Motor Heat Sink