Feature:1. PU Material: The wheel is made of environmentally friendly PU material, non slip and wear resistant, and can be used for a long time.2. Large Load Bearing: The thickness of the wheel hub is 40mm, and the thicker design makes it have strong load bearing capacity.3. 608ZZ Ball Bearing: Using 608ZZ metal ball bearings, the solid wheel runs smoothly and is safer to use.4. 7in Diameter: The wheelchair solid wheel with 7in large diameter ensures quick moving and great stability.5. Multiple Usages: The 5 hole wheel hub is suitable for wheelchairs, rollators, walkers, etc., easy to install and replace.Specification:Item Type: 7in Solid WheelMaterial: PU MaterialDiameter: Approx. 170mmTire Thickness: Approx. 28mmWheel Hub Thickness: 50mm(There may be small error in manual measurement.)Package List:2 x Wheelchair WheelNote:Please match the appropriate size before use.