This is the Sealed Bearing 5x10mm (2pcs) For the HPI Racing Trophy Nitro Series. FEATURES: Steel construction INCLUDES: Two bearings COMMENTS: This bearing can be installed on 1/8 Trophy 3.5 Buggy Nitro 2.4GHz RTR (HPID7012) 1/8 Trophy 4.6 Truggy Nitro 2.46 GHz RTR (HPID7014) 7/19/12 pjw ir/jxs