Utilizing VXB007050P makes it feasible to pull and push items instead of transport Diameter size of the caster wheel has a metric standard 50mm which is equal to 1.969" inch with imperial units. The thickness of the wheel is 22mm or .866" inch. The Caster with the wheel from end to end is 65mm = 2.559" inch. Mounted via a Top Plate that has the size of 58mm x 48mm and the holes distance of 46mm x 35mm. This caster wheel core material is Plastic and has a Plastic tire spinning over Delrin bearing. Each caster will carry the load of 88 lb and is type. Temperature range is -40 to 180 F. Buy our VXB007050P, we wish all the best.