10-Pack Flanged Shielded Bearings 6x12x4 Miniature6 x 12 x 4 Flanged Ball Bearings Lot of 10 Bearings 6 x 12 x 4 Flanged Wheel Ball Bearings, this is a go to bearing size that fits lots of RC cars and trucks or any application that uses this size 6mm x 12mm x 4mm. 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. 6 x 12 x 4 Flanged