This is the optional Integy 54 Tooth Steel Spur Gear for Traxxas T-Maxx 3.3 and Jato models. FEATURES: Steel construction Color coded aluminum ring for easy tooth number identification (the 54 tooth features a purple colored ring) INCLUDES: One steel spur gear with purple aluminum id ring Three 3x6mm screws (for mounting the aluminum id ring) REQUIRES: Installation SPECS: Thickness: .24" (6mm) COMMENTS: For the 55 tooth gear order INTC1274 For the 56 tooth gear order INTC1275 For the 57 tooth gear order INTC1276 For the 58 tooth gear order INTC1277 For the 53 tooth gear order INTC1273 kpm01/02/2007 ir/jxs