Features 1、PU Wheel: This wheel is sturdy and explosion proof because it is made of excellent PU material. Very handy to use, no need to inflate! 2、Alloy Steel Wheel Hub: The wheel hub is formed of alloy steel, which is resistant to rust and wear , strong, and sturdy, providing a long life span. 3、Clear Wheel Pattern: The distinct wheel pattern, which makes the wheel anti skid, wear resistant, suited for many types of roads, and very stable! 4、Wide Application: This well designed wheel is suitable for electric wheelchairs, carts, etc. You can also use it for other tools! 5、Ideal Replacement: This wheel can be easily installed, ideal replacement for the old and damaged parts for better performance! Specification Item Type: Wheelchair Wheel Material: Polyurethane (PU), Alloy Steel Wheel Outer Diameter: Approx. 250mm / 9.84in Wheel Thickness: Approx. 50mm / 1.97in Installation Hole Diameter: Approx. 6mm / 0.24in Package List 1 x Wheelchair Wheel