10-Pack Flanged Bearings 4x10mm - Double Shielded 4x10x4 Miniature4 x 10 x 4 Flanged Ball Bearings Lot of 10 Bearings 4 x 10 x 4 Flanged Ball Bearings, bearing is a popular size that could be used in many RC Cars and Trucks, 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. 4 x 10 x 4 Flanged Ball Bearings Deep Groove Ball Bearings Shield Metal