Features: Brand new and high quality 10pcs 6701 2RS ball bearings, rubber sealed deep-groove approx 18x12x4mm Made from chrome alloy steel, durability and resistant to deformity under heavy loads Sealed on both sides of the bearing to keep lubricant- in. Rubber Sealed Ball Bearings have maximum-protection , and are good for off-road racing. Widely used in industrial machine, motorcycle, automobile, power tools and mechanical equipment and other kinds of field. Specifications: Item No:6701-2RS Bearing Inner Diameter:approx 12mm Outer Diameter:approx18mm Height:approx4mm Precision:ABEC3 Type:Single Row Deep-Groove Ball-Bearings Materail:Alloy Steel Packing:10PCS/Set Rubbersealing: in Double Sides Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 10PCS x 6701 2RS Bearings