VXB005150CPU is a device building a wheel that's connected to the base of a huge object like a trailers, your home furniture, even your truck to transfer the item more quickly and readily. them.You need {Item Name} to have your office desk, equipment or even a machine to easily roll them around. Dia. Measured of the caster wheel in metric standard 150mm which is equal to 5.906" inch with imperial units. The wheel has a width of 50mm=1.969" inch. The Caster with the wheel from end to end is 191mm = 7.520" inch. Top Plate is the method of installing the caster to your equipment, dimensions are 100mm x 115mm with the holes distance of 75mm x 85mm. This caster wheel core made of Iron core and Polyurethane and has a Iron core and Polyurethane tire spinning over Double ball beaing. Each caster wheel will carry the load of 705 lb and is Swivel type. Ambient temperature range is -40 to 180 F. FYI, you will need to buy the VXB005150CPU in order to get one :).