Feature:1. STANDARD SIZE: The inflatable tire is 4 holes design, with standard size and center hole diameter, which is convenient for installation and replacement.2. METAL WHEEL HUB: The tire adopts alloy steel wheel hub, which is rustproof and durable, with strong bearing capacity, greatly extends the service life.3. PU WHEEL TIRE: The tire is made of excellent polyurethane, with good toughness, corrosion resistance and wear resistance, not easy to deform.4. NON SLIP: With professional design and precise manufacturing process, the tire has non slip texture and is suitable for various roads with good stability.5. MULTIPLE USAGES: The PU tire is applicable to electric wheelchairs and trolleys, can be used after being installed according to the corresponding hole.Specification:Item Type: Wheelchair TireMaterial: PU, Alloy SteelMaximum Bearing Capacity: 240kpaWheel Outer Diameter: Approx. 320mm / 12.6inWheel Thickness: Approx. 57mm / 2.2inInstallation Center Hole Diameter: Approx. 6mm / 0.24inKeyway Width: Approx. 6mm / 0.24inHow to Use:It can be used after installation according to the corresponding hole positionPackage List:1 x Wheelchair Tire1 x Mounting Part