This is the 6x19x21mm Cup Joint for use with the HPI Dual Fiberglass Brake Disc, 86322
FEATURES: Fits the HPI Savage X and XL monster trucks Constructed of steel
INCLUDES: Cup joint with 2mm hex wrench, two screws Thread Lock, Heavy Duty Grease
SPECS: Length: 21mm Hex Size: 19mm Hole Diameter: 6mm