Minimization of possible untoward effects on operator by installing VXB005100PPB1 just ask your operator to push and pull, but not carry. And rolling on wheel that has 100mm diameter/3.937" inch. The thickness of the wheel is 45mm or 1.772" inch. The caster dimensions heightwise is 142mm/5.591" inch. Mounted via a Top Plate that has the size of 115mm x 110mm x 6mm and the holes distance of 72mm x 85mm. The weehl core material is Polypropylene and has a Polypropylene tire with a low friction Double ball beaing. Bearing in mind that every caster wheel has the load capacity of 1102 lb with a Side Brake type. Temperature range is -40 to 180 F. Very important notice, you need to buy the VXB005100PPB1 in order to get one :).