This retractable caster kit comes with a detachable mounting plate and features locking pedals to keep your workbench in place. The ribbed lift pedals provide extra grip for easy raising and lowering. Designed to work on workbenches, stands, tables, cabinets and lightweight machinery with flat bases, this kit makes moving heavy items effortless and more efficient. Features 1. The casters are designed to lock upon proper handling so that all heavy capacities stay in place. 2. An individual need only push their foot down on the pedal to lock a desk from rolling away on the jobs. 3. The wheels of each caster carry workbenches effortlessly, so you can spend more time getting your jobs done. 4. The retractable casters are equipped with quick release plates, work by simply pushing down on the pedals to raise your workbench off the floor. 5. Each lift pedal of the heavy duty retractable caster is ribbed and textured to provide extra grip when foot pressure is applied. The casters will work on workbenches, stands, tables, cabinets and lightweight machinery with flat bases. Specification Material: Metal Color: See Photo Package Includes: 1 x Retractable Caster Set