Features Standard Size Design: This 320mm inflatable tire features a 4-hole design with a standard center hole diameter for easy installation and quick replacement Alloy Steel Hub: Constructed with a robust alloy steel wheel hub, this tire offers exceptional strength and longevity, ensuring reliable performance for your vehicle High-Quality PU Material: Made from premium polyurethane, this tire boasts excellent toughn, puncture resistance, and wear resistance, providing lasting durability without deformation Enhanced Non-Slip Grip: Engineered with a profional manufacturing proc, this tire features a non-slip texture for superior traction and stability on various terrains Versatile Compatibility: This tire is suitable for electric wheelchairs and trolleys, easily installed according to the corresponding hole for multiple usage options Features: 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 proof and , with strong bearing capacity, greatly extends the service life. 3、PU WHEEL TIRE: The tire is made of excellent polyurethane, with good toughn, resistance and wear resistance, not easy to deform. 4、NON SLIP: With profional design and manufacturing proc, 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 Tire Material: PU, Alloy Steel Maximum Bearing Capacity: 240kpa Wheel Outer Diameter: Approx. 320mm / 12.6in Wheel Thickn: Approx. 57mm / 2.2in Installation Center Hole Diameter: Approx. 6mm / 0.24in Keyway Width: Approx. 6mm / 0.24in Package List: 1 x Wheelchair Tire 1 x Mounting Part Package List 1 x Wheelchair Tire 1 x Mounting Part