Item Type: Wheelchair Front Caster Material: PU, PVC, Stainless Steel Specification: 8 Inch Wheel Thickness: Approx. 47mm/1.9in Center Hole Inside Diameter: Approx. 8mm/0.3in Center Hole Pitch: Approx. 59mm/2.3in Bearing Outer Diameter: Approx. 28mm/1.1in Package List 1 x Wheelchair Front Caster 1Shock Absorbing And Wear Resistant: This wheelchair's front wheel is made of PVC solid wheels, which are very wear resistant and can shock absorbing. 2Stainless Steel Bearing Axle: This wheelchair's front wheel is made of excellent stainless steel material for the bearing axle, which is very strong and load bearing. 3Labor Saving: This wheel runs smoothly and has good driving stability on flat surfaces. It does not lose control or slip for no reason and is easy to maneuver even for wheelchair users. 4Thickened PU Wheel Hub: The wheel adopts thickened PU wheel hub, which provides stable support, stable rolling and safe use. 5Wide Application: This wheel is widely used for elderly people with limited mobility, handicapped vehicles, medical vehicles and more.