Features: l High quality for professional use l Made from excellent parts and intended for long-term use l TAMIYA standard and hop-up replacement components, accessories, and more are available to help you get the most out of your models l This is intended for use on RC and model products, for precise component listings, check your user's manual Specification: l Types (Optional): (68T) 54500 Aluminum Alloy Kit, Single Aluminum Alloy Kit l Gear Diameter: 23mm l Applicable Model: for TAMIYA TT-02 Package: l 1x (68T) 54500 Aluminum Alloy Kit Or l 1x Single Aluminum Alloy Kit