General description Whether you're replacing the front wheel of a wheelchair, walker, or cart, these 20cm (8 inch) non-slip PVC front wheels are designed to perform effectively. The wheelchair casters are built with a sturdy and durable structure, making them easy to use in various settings. Technical specifications Wheel diameter: 20 cm (8 inch) Material: Solid ABS wheels with solid PVC tires Features: Wear-resistant, non-slip, shockproof Installation Equipped with necessary nuts and screws for easy installation Usage Suitable for indoor and outdoor use Ideal for use in parks and various environments Other information Please measure the required wheel diameter, wheel axle diameter, axle shoulder width, and front fork inner diameter before purchasing.