This is a set of Aluminum Alloy Clutch Shoes from Team Integy for use with the Traxxas T-Maxx monster truck. FEATURES: Optional replacement parts Aluminum alloy construction INCLUDES: Two alloy clutch shoes REQUIRES: Traxxas T-Maxx Clutch springs SPECS: Thickness: .313"(8.02mm) COMMENTS: These are optional replacements for the two shoe clutch setup. IntegyPart INTT3668