Heavy weight capability and Durability made the wheel casters like the VXB0045150PP a must use, get your do it yourself object move around. And rolling on wheel that has 150mm diameter/5.906" inch. The thickness of the wheel is 40mm or 1.575" inch. Overall height of the wheel caster is 195mm = 7.677" inch. This wheel caster can be mounted using a Top Plate with the dimensions of 110mm x 100mm x 4mm fork:3.5mm and holes distance of 85mm x 75mm. This caster wheel core material is Polypropylene and has a Polypropylene tire spinning over ball bearing. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 772 lb with a Swivel type. The caster temperature range = -40 to 180 F. Buy our VXB0045150PP, we wish all the best.