Size: 608Dimensions: 8 x 22 x 7mm(Inner Diameter: 8mm, Outer Diameter: 22mm, Width:7mm)Material: Higi qualityChromesteel(Gcr15) inner& outer rings ZirconiumCeramicaZrO2 6 beadsRetainer& Seal Frictionless Nylon cage silver Iron Seal on sideSuited : Inline roller skates,Slalom Speed Skating sports,skateboard...Impact Load: 195kg240kgPackage Includes: 16pcs bearings+ 1 ironbox8 x 22 x 7mmAwesome Speed!Dear gentlemen and ladies, welcome to my shop. Your support is our greatest driving force for progress. All products in our store have undergone strict screening and quality control to ensure the reliable quality of each item, allowing you to buy with confidence and comfort. Dear customer, please feel free to purchase with confidence and have a pleasant shopping experience.