Heavy weight capability and Durability made the wheel casters like the VXB007040PF a must use, get your do it yourself object move around. Diameter size of the caster wheel has a metric standard 40mm which is equal to 1.575" inch with imperial units. The thickness of the wheel is 17mm or .669" inch. Overall height of the wheel caster is 54mm = 2.126" inch. Mounted via a Top Plate that has the size of 45mm x 40mm and the holes distance of 35mm x 28.5mm. Low drag was achieved by a Plastic core on a Plastic tire spinning freely with a -. Bearing in mind that every caster wheel has the load capacity of 44 lb with a Fixed type. Temperature range is -40 to 180 F. Buy the VXB007040PF now, just add the quantity to basket and click on Checkout.