【Premium Material】Made of Polyurethane, Performance well 【Specification】Out dia. 8 Inch Approx. 200mm, Wheel hub thinkness:1.2 Inch,Approx. 30mm 【Eazy to Install】 Pre-installed 608RS bearings and Spacers, Enjoy a smooth ride 【Moderate Hardness & High-Speed 】 85A Durometer, Comfortable to Ride 【Application】Usage for Razor A5 Lux Kid Youth Adult Kick Push Scooter 【What's included】 2 Pieces 【What's included】 2 Pieces 8-inch Scooter Replacement Wheels