This is the Set of Brake Pads for the Traxxas T-Maxx 4WD RTR Monster Truck. These brake pads fit on either side of the brake disc and bolt to the rear of the gearbox. FEATURES: Replaces missing or damaged brake pads Constructed of steel for long life INCLUDES: One Set of Brake Pads Two 3x16mm cap hex screws One brake piston REQUIRES: Placing on either side of brake disc (4964) and bolting to rear of gearbox (4991). COMMENTS: Manufacturer's website is www.traxxas.com JXS 11/29/00 ir/jl BOX DIMENSIONS: 2.50" W. X .50" H. X 3.00" L. BOX WEIGHT: .02 LBS.