Who said Canada do not sell caster wheel, eh? The VXB005C100BAPUB3 can move your large heavy object. Wheel dia. is 100mm or 3.937" inch in inches. Sizes of the caster wheel is 50mm (1.969" inch). The height of the wheel caster is 150mm = 5.906" inch. Mounted via a Top Plate that has a size of 115mm x 100mm x 6mm and the holes distance of 72mm x 85mm. Low drag was achieved by a Aluminium and Polyurethane core on a Aluminium and Polyurethane tire spinning freely with a Double ball beaing. Each caster wheel will carry the load of 772 lb and is Swivel and Upper Brake type. The Temperature range is -40 to 180 F. Buy the VXB005C100BAPUB3 now, we ship on the same day.