Heavy weight capability and Durability made the wheel casters like the VXB0045100PP a must use, get your do it yourself object move around. And rolling on wheel that has 100mm diameter/3.937" inch. The wheel has a width of 40mm=1.575" inch. Overall height of the wheel caster is 140mm = 5.512" inch. Mounted via a Top Plate that has the size of 110mm x 100mm x 4mm fork:3.5mm and the holes distance of 85mm x 75mm. This caster wheel core material is Polypropylene and has a Polypropylene tire spinning over ball bearing. Each caster will carry the load of 551 lb and is Swivel type. The caster temperature range = -40 to 180 F. Buy the VXB0045100PP now, just add the quantity to basket and click on Checkout.