Upgrade your mobility aid with these 2Pcs 6 - inch replacement wheelchair wheels. The wheels are made of environmentally friendly rubber material, with wear - resistant PU tires and a durable ABS wheel hub. They measure 6.5 x 6.34 x 3.39 inches and weigh 1.79 pounds. The high - strength design, using 12.9 grade high - strength screws, high - quality casters, and metal ball bearings, gives the ABS wheels a strong load - bearing capacity, suitable for wheelchair assist devices and rollators. The thickened PU tires are anti - skid and wear - resistant, suitable for both indoor and outdoor use. The solid rubber tires ensure quiet and stable rolling, perfect for quiet environments. Installation is a breeze; simply confirm the size and replace the old wheels. These lightweight and labor - saving wheels make it easier to maneuver your wheelchair or rollator, providing long - term practical use and enhancing your daily mobility.