Choose our quality products and enjoy your wonderful lifeNote: The color of the item may vary slightly due to photography & your own computer or cell phone. Theres some little error from human measuring.Brand: AOWISHItem: Aggressive Inline Skate Replacement WheelsPackage Included: 4 x Aggressive Inline Skate Replacement WheelSpecifications:✔ Material: Super High-Rebound PU✔ Hardness: 90A✔ Bearings: High Speed ABEC-9✔ Size: Diameter 68mm/72 mm/76 mm/80 mm Width 24 mm(0.94 inch) Inner Diameter/Axle 8 mm(0.3 inch)✔ 100% brand new and high qualitySupporting Services: We not only provide you with quality products but also provide you with better after-sales services. If you have any concerns please feel free to contact us thank you.