Features 1、The product is strong and explosion‑proof, no need to inflate, easy for you to use 2、Tire texture is non-slip and wear-resistant, ideal for various roads, very practical 3、Made of good-quality materials to provide excellent shock absorption performance 4、Suitable for the rear wheels of electric wheelchairs, strong and durable, possess long service life 5、Wheel diameter is 16in, come with 4 center holes, the center hole diameter is 45mm Specification Item Type: Electric Wheelchair Rear Tire Material: Polyurethane, aluminum alloy Tire Thickness: Approx. 52mm / 2in Wheel Diameter: Approx. 40.64cm / 16in Center Hole Diameter: Approx. 45mm / 1.8in Installation Hole Distance: Approx. 43 x 43mm / 1.7 x 1.7in Package List 1 x Electric Wheelchair Rear Tire