Mounting 5inch-Caster-004 is the solution of making your project to move around by pushing. This wheel caster has a wheel diameter of 125mm or 4.921" inch in inches. The thickness of the wheel is 50mm or 1.969" inch. The caster dimensions heightwise is 167mm/6.575" inch. Top Plate is the method of installing the caster to your equipment, the dimensions are 100mm x 115mm with the holes distance of 75mm x 85mm. Low drag was achieved by a Thermoplastic Rubber core on a Thermoplastic Rubber tire spinning freely with a Double ball beaing. Bearing in mind that every caster wheel has the load capacity of 507 lb with a Fixed type. Temperature range = -40 to 180 F. Remember, you will have to buy the 5inch-Caster-004 in order to have it :).