Gladiator Caster Kit for Ready to Assemble Freestanding Garage CabinetsThis Gladiator Caster Kit for Ready to Assemble Freestanding Garage Cabinets is specially designed to work with select Gladiator GearBoxes. Offering a durable and sturdy construction, the front casters lock with a simple step, making it possible to solidly hold the unit in place. The swiveling rear casters make the unit easy to move for quick and convenient travel. Supports up to 300 lbs. Caster kit includes four casters (two front, locking casters,