Efficient VXB00512550BNYB1 makes it feasible to pull and push items instead of transport Spinning on wheel that has 125mm diameter/4.921" inch. The wheel has a width of 50mm=1.969" inch. The Caster with the wheel from end to end is 164mm = 6.457" inch. This wheel mounting is Top Plate with the dimensions of 115mm x 110mm x 6mm and holes distance of 72mm x 85mm. This caster wheel core made of Polyamide (Nylon) and has a Polyamide (Nylon) tire spinning over Double ball beaing. Having in mind that every caster wheel has the load capacity of 1543 lb with a Side Brake type. Ambient temperature range is -40 to 180 F. FYI, you will need to buy the VXB00512550BNYB1 in order to get one :).