["Description:\nbrand new and high quality.\nFeature:\nDeep groove ball bearings.\nThese bearings are pre-lubricated with grease.\nSelection of metal material, good quality, long life.\nSmooth operation, low friction, high performance and long life.\nApplications: skateboards, roller blade, inline skating, scooter, rollerblade. \nPlease confirm it is the correct size the bearing you are looking for.\nBearings only, other accessories demo in the picture is not included!\n\nSpecifications:\nItem Type: Bearings\nDynamic Load Rating (Cr): 2.53 KN\nStatic Load Rating (Cor): 1.36 KN\nMax Speed (Grease): 26,000 rpm\nMax Speed (Oil): 34,000 rpm\nChamfer: 0.3 r/min\nWeight: 0.015kg\nMaterial: Metal\nSize: Outer Diameter: 22mm/0.8in, Inner Diameter: 8mm/0.3in, Thickness: 7mm/0.2in\nColor: Black+Silver\nQuantity: 10pcs/bag\n\nNote:\nNo retail package.\nTransition: 1cm=10mm=0.39inch\nPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage Includes:\n10 x Bearings"]