Bearing material: bearing steelExternal profile: U-shapedSize:Inner gap :6mm/ Outer diameter :30mm/ trench backside :23.8mm/ Thickness :10mmWeight: About 10gColor: BlackPackage Contents:1 pcs U Groove Roller PulleyFeatures:1.Sliding door and window roller bearing metallic 626 bearing is fabricated from superb steel, has nice corrosion resistance and put on resistance, can stand up to a lot of load and pressure, to ensure the durability and lifetime of the product.2. This bearing design is exquisite, highly appropriate for the use of sliding doors and Windows, can give stable, noiseless rotation and mushy operation, upgrade the outlet and closing journey of doorways and Windows.3.626 bearing size is accurate, suitable for many sliding doorways and Windows, and set up is simple, no reputable tools, can be changed and installed at home.4. Sliding door and window curler bearing metallic 626 bearing is affordable in charge and cost-effective, which is an economical resolution for families and advertisement places. In addition, its excessive energy and durability additionally tremendously cut the will for substitute and maintenance, saving money.5. In addition to conventional sliding doorways and Windows, 626 bearings can also be used for other items that desire bearings, comparable to skateboards, pulleys, common family appliances, etc., with a wide range of applicability.Notes:1.Please enable 1-2cm differences because of guide measurement, thanks.2.Please perceive due to the light irradiation or pc exhibit difference, so I can't warrantly photos and real shade is the same.