Heavy weight capability and Durability made the wheel casters like the VXB005100BLPPF a must use, get your do it yourself object move around. Diameter size of the caster wheel has a metric standard 100mm which is equal to 3.937" inch with imperial units. Dimensions of the caster wheel is 50mm (1.969" inch). Overall height of the wheel caster is 142mm = 5.591" inch. Mounted via a Top Plate that has the size of 100mm x 115mm and the holes distance of 75mm x 85mm. The Double ball beaing design will enable the Polypropylene tire to roll easily with a core made of Polypropylene. Bearing in mind that every caster wheel has the load capacity of 441 lb with a Fixed type. Temperature range is -40 to 180 F. Buy our VXB005100BLPPF, we wish all the best.