Editorial Review TRB RC Precision High Speed Ball Bearing Kit V2, Chrome Steel 52100 (GCr15) ABEC 3 with Rubber Seals.Fits: Traxxas 1/16 Models, E-Revo, E-Revo VXLNote: Due to Manufacture model updates always verify your model sizes for proper application.***Note: The V2 Kit does NOT Include the Rocker Arm or Steering Bellcrank Ball BearingsFeatures:*Chrome Steel 52100 (GCr15) ABEC 3 Races *Rubber Seals to Help Fight Dirt *Great Quality & Value For Applications Includes:Dimensions and Quantity as follows: ID, OD, Width:4x8x3mm Qty. 15pcs # MR84-2RS8x12x3.5mm Qty. 8pcs # MR128-2RS23 Total Ball Bearings*Part # TRB-500075*Part SKU# 1-16RevoVXL-V2-500075