Heavy weight capability and Durability made the wheel casters like the VXB00512550BNYF a must use, get your do it yourself object move around. Diameter size of the caster wheel has a metric standard 125mm which is equal to 4.921" inch with imperial units. The thickness of the wheel is 50mm or 1.969" inch. The Caster with the wheel from end to end is 164mm = 6.457" inch. Mounted via a Top Plate that has the size of 115mm x 110mm x 6mm and the holes distance of 72mm x 85mm. This caster wheel core material is Polyamide (Nylon) and has a Polyamide (Nylon) tire spinning over Double ball beaing. Each caster will carry the load of 1543 lb and is Fixed type. Environment temperature range is -40 to 180 F. Buy the VXB00512550BNYF now, just add the quantity to basket and click on Checkout.