This is the Traxxas VXL Velineon 3500 Replacement Rotor Set. This can be used to help refresh your 1/10 scale Velineon 3500 motor to improve performance back to factory specs. You may also want to get the 3352 motor rebuild kit at the same time in order to replace the bearings.
Traxxas 3500 Velineon 1/10 Scale Brushless Motors in:
Slash 2WD VXL
Slash 4x4 VXL
Stampede 2WD VXL
Stampede 4x4 VXL