Low cost solution to the heavy weight objects movement, Wheel casters like our VXB007100PVCB are used to roll your machine or equipment back and forth. And rolling on wheel that has 100mm diameter/3.937" inch. The wheel has a width of 27mm=1.063" inch. The Caster with the wheel from end to end is 130mm = 5.118" inch. Top Plate is the method of installing the caster to your equipment, here are the dimensions 76mm x 76mm with the holes distance of 57mm x 57mm. This caster wheel core material is Polyvinyl Chloride and has a Polyvinyl Chloride tire spinning over Plain bearing. Bearing in mind that every caster wheel has the load capacity of 88 lb with a Swivel and Upper Brake type. Environment temperature range is -40 to 180 F. Very important notice, you need to buy the VXB007100PVCB in order to get one :).