Features: *Aluminum removable wheel adapter *12/17mm wheel adapter fits precisely into most 1/10 & 1/8 wheels *Foldable design allows for ease of use and convenient pit box storage *Smooth & free rotation *High quality lightly oiled ball bearings installed for fine wheel rotation *Balanced tires can improve car traction, stability and acceleration *Wheel balancing clay / putty included *An adjustable long set screw included for use on wheels with deep offsets *Made In Taiwan *Cars, parts, accessories & others are not included.* (KOS13010)