FastEddy Bearings are a high quality steel/chrome bearing with 2 Rubber Seals. Time has proven this bearing for exceptional performance and durability in the Hobby Industry including RC Cars, Boats, Robotics, Bicycles, many other uses. (10) 3x10x4 Rubber Sealed Bearing 623-2RS NOTE: PHOTOS ARE FOR IDENTIFICATION ONLY Photos are for Seal / Shield / Bearing Style identification only and ARE NOT a photo of the exact bearing being ordered. Please reference the size.