The Traxxas 7777X Ring gear differential/pinion gear front is a black gear designed for Traxxas trucks. This gear is compatible with electric vehicles in a 1:10 scale, specifically the 7777x model. Made in the United States by Traxxas, this ring gear differential/pinion gear front is a genuine part that will help maintain the proper functionality of your RC vehicle. Perfect for young users aged 4-7 who enjoy playing with their Traxxas trucks, this gear is a necessary component for smooth operation.