Mounting the 5inch-Lock-Swivel-Caster-026 Wheel Caster can make your life easier, push or pull your new project on wheels. This caster is rolled on a wheel that has 125mm diameter/4.921" inch inches. The thickness of the wheel is 40mm or 1.575" inch. The Caster with the wheel from end to end is 165mm = 6.496" inch. Mounted via a Top Plate that has the size of 110mm x 100mm x 4mm fork:3.5mm and the holes distance of 85mm x 75mm. The ball bearing design will enable the Polyurethane and Polypropylene tire to roll easily with a core made of Polyurethane and Polypropylene. Bearing in mind that every caster wheel has the load capacity of 661 lb with a Swivel and Upper Locking type. The temperature range is -40 to 180 F. Remember, you will have to buy the 5inch-Lock-Swivel-Caster-026 in order to have it :).