This is the Ball Bearing: 4pcs (5x8x3mm) For the Team Durango DEX210 1/10 Electric 4WD Off Road Buggy (TDRC0010) FEATURES: Steel construction INCLUDES: Four ball bearings COMMENTS: This part is standard for DEX210 1/10 Electric 4WD Off Road Buggy (TDRC0010) 5/22/12 pjw ir/jxs