10-Pack 2x5mm Double Shielded 2x5x2.5 Miniature Bearing2 x 5 x 2. 5 Shielded Ball Bearings Lot of 10 Bearings 2 x 5 x 2. 5 Shielded Ball Bearings, Made from high strength chrome steel for durability and performance, each Comes with double metal shields (ZZ) to keep out dust and dirt, additionally, these bearings come pre lubricated with grease for smooth operation. 2 x 5 x 2. 5 Ball Bearings Deep Groove Ball Bearings Shield Double Metal Shields for dust protection (ZZ) Lubrication: Pre lubricated with