This is the RJ Speed Thrust Bearing for the RJ Speed R/C Legends Spec Coupe Kit and Spec Sedan Kit. FEATURES: Nylon construction Blue in Color INCLUDES: One Thrust Bearing Two Thrust Washers REQUIRES: Installation SPECS: Outer Diameter: 14mm (0.55") Inner Diameter: 6mm (0.24") Thickness: 2.45mm (0.096") RJ SpeedPart RJS5735