Low cost solution to the heavy weight objects movement, Wheel casters like our VXB005150ATPRF are used to roll your machine or equipment back and forth. The wheel diameter is 150mm or 5.906" inch in inches. Dimensions of the caster wheel is 50mm (1.969" inch). The Caster with the wheel from end to end is 195mm = 7.677" inch. Mounted via a Top Plate that has the size of 100mm x 115mm and the holes distance of 75mm x 85mm. This caster wheel core material is Polypropylene core and Thermoplastic Rubber and has a Polypropylene core and Thermoplastic Rubber tire spinning over Double ball beaing. Each caster will carry the load of 617 lb and is Fixed type. Environment temperature range is -40 to 180 F. Buy our VXB005150ATPRF, we wish all the best.