This is the Ball Bearing: 4pcs (10x15x4mm) For the Team Durango Off Road Buggies and Short Course Truck FEATURES: Shielded steel construction INCLUDES: Four ball bearings COMMENTS: This is a standard part for DEX410 1/10 Electric 4WD Off Road Buggy DEX410v2 1/80 Nitro 4WD Off Road Buggy DEX410R 1/10 Electric 4WD Off Road Buggy DESC410R 1/10 Electric 4WD Short Course Truck (TDRC0130) DEX210 1/10 Electric 2WD Off Road Buggy (TDRC0010) DEX408 1/8 Electric 4WD Off Road Buggy (TDRC0300) DEX410v3 1/10 Electric 4WD Off Road Buggy (TDRC0120) DEX410Rv3 1/10 Electric 4WD Off Road Buggy 5/7/12 pjw ir/jxs