Features DURABLE MATERIALS: The caster adopts universal PU hub and PVC solid wheel, wear resistance and shock absorption, and steel bearing is sturdy and non slip. STABLE OPERATION: The front wheelchair wheel operates smoothly, and have good driving stability on a flat surface, without losing control or slipping. HIGH LOAD CAPACITY: The thickened PU wheel PU provide stable support, with 120KG strong load bearing capacity, high strength, and safe operation. GOOD COMPATIBILITY: Compatible with most 7 inch wheel wheelchair, walker, grocery cart, and scooter, suitable for elderly or sick individuals with limited mobility. STANDARD SIZE: The caster has standard aperture and spacing, which can directly replace old or damaged wheelchair front wheels, and easy to install. Specification: Item Type: 7 Inch Caster Material: PU, PVC, Stainless Steel Specification: 7 Inch Wheel Thickness: Approx. 47mm / 1.85in Center Hole Inner Diameter: Approx. 8mm / 0.31in Center Hole Spacing: Approx. 59mm / 2.32in Package List: 1 x Wheelchair Front Wheel Package List 1 x Wheelchair Front Wheel