Mounting VXB007100RB is the Low cost solution of making a project to move around by pushing or pulling. And rolling on wheel that has 100mm diameter/3.937" inch. The wheel has a width of 26mm=1.024" inch. The Caster with the wheel from end to end is 134mm = 5.276" inch. Top Plate is the method of installing the caster to your equipment, here are the dimensions 75mm x 75mm with the holes distance of 55mm x 55mm. This caster wheel core material is Grey rubber and has a Grey rubber tire spinning over Plain bearing. Each caster will carry the load of 99 lb and is Swivel type. Environment temperature range is -40 to 180 F. Buy our VXB007100RB, we wish all the best.