Utilizing VXB20040NYS1 makes it feasible to pull and push items instead of transport And rolling on wheel that has 42mm diameter/1.654" inch. The thickness of the wheel is 42mm or 1.654" inch. Overall height of the wheel caster is 38mm = 1.496" inch. Mounted via a that has the size of 34mm x 34mm and the holes distance of 129mm x 74mm. Low drag was achieved by a Nylon core on a Nylon tire spinning freely with a Roller bearing. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 55 lb with a Swivel type. The caster temperature range = -40 to 180 F. Very important notice, you need to buy the VXB20040NYS1 in order to get one :).