This is the Ball Bearing: 4pcs (5x10x4mm) For Team Durango Off Road Buggies and Short Course Truck FEATURES: This is an official Team Durango spare/optional part constructed from high quality materials. INCLUDES: Four ball bearings COMMENTS: This part is standard for DEX410 1/10 Electric 4WD Off Road Buggy DNX408v2 1/8 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) DEX410v3 1/10 Electric 4WD Off Road Buggy (TDRC0120) DEX410Rv3 1/10 Electric 4WD Off Road Buggy 5/18/12 pjw ir/jxs