Item Type: Wheelchair Wheel_x000D_ Material: PU_x000D_ Wheel Outer Diameter: 7in_x000D_ Wheel Thickness: Approx. 47mm / 1.85in_x000D_ Center Hole Inner Diameter: Approx. 8mm / 0.31in_x000D_ Center Hole Spacing: Approx. 59mm / 2.32in 1SAFE AND EXPLOSION PROOF: The wheel is strong and explosion proof, without inflating, easy to use and change 2DURABLE MATERIAL: Solid wheel is made of PU polyurethane hub, rust resistant and durable, with strong bearing capacity 3STABLE AND NON SKID: Tire texture is non slip and wear resistant, suitable for all kinds of road surface, with stable performance 4APPLICABLE SCENARIO: PU solid wheel adopt professional design and accurate manufacturing process, suitable for electric wheelchairs, carts and so on 5SHOCK ABSORPTION AND LOW NOISE: This is a polyurethane solid wheel, no noise with good shock absorption effect1 x Wheelchair Wheel