1、10in Wheelchair Wheel: The outer diameter of this wheel is 250mm/10in, used to replace the rear push wheel of electric wheelchair, with good versatility. 2、Vacuum Wheel: The vacuum wheel is strong and explosion proof, no need to inflate, easy to use and replace. 3、Alloy Steel Wheel Hub: The wheelchair wheel uses excellent alloy steel hub, which is rust proof, has strong bearing capacity. 4、Anti Skid Texture: Tire texture is anti skid and wear resistant, suitable for various road surfaces, with stable performance. 5、Professional Made: The wheel adopts professional design and precise manufacturing process, suitable for electric wheelchairs, carts, etc. 1 x Electric Wheelchair Rear Wheel Item Type: Electric Wheelchair Rear WheelMaterial: Polyurethane, Alloy SteelWheel Outer Diameter: Approx. 250mm/10inWheel Thickness: Approx. 50mm/2inCenter Aperture: Approx. 17mm/ 0.7inOuter Diameter of Central Column: Approx. 34mm/ 1.3in