Whether it's renewing the front wheel of a wheelchair or replacing the caster of a walker or trolley, it can do the job well. Wheelchair Casters Metal bearings, ABS solid wheels, and PVC solid tires form a sturdy and durable structure that is easy to use. The Wheelchair Wheels solid tire is wear-resistant, non-slip, and shock-resistant, and can cope with various environments such as indoors and outdoors, parks, etc. Wheelchair Casters Equipped with the necessary nuts and screws for installation, they are easy to install. Please carefully measure the required wheel diameter, wheel axle diameter, axle shoulder width, and front fork inner diameter before purchasing.