XIKE 6004 2RS Ball Bearings 20x42x12mm, Pre lubricated and Bearing Steel Double Rubber Seals, 6004RS Deep Groove with Shields, 2 in a pack.

6004-2RS 20 mm inside diameter, 42 mm outside diameter, 12 mm width Constructed of rugged, chrome-plated steel Double sealed bearings require less maintenance Free replacement or full refund within 6 months XIKE bearings are your simple and efficient choice