Heavy weight capability and Durability made the wheel casters like the VXB007B050PVCB a must use, get your do it yourself object move around. The wheel diameter is 50mm or 1.969" inch in inches. The wheel has a width of 25mm=.984" inch. The caster dimensions heightwise is 73mm/2.874" inch. Mounted via a Top Plate that has the size of 70mm x 51mm and the holes distance of 53mm x 35mm. Low drag was achieved by a Polyvinyl Chloride core on a Polyvinyl Chloride tire spinning freely with a Ball bearing. Bearing in mind that every caster wheel has the load capacity of 55 lb with a Swivel and Upper Brake type. Environment temperature range is -40 to 180 F. Buy the VXB007B050PVCB now, just add the quantity to basket and click on Checkout.