This heavy-duty AmGood caster set is designed to provide sturdy, mobile support for a wide variety of work tables and equipment stands. This set includes two 5" durable locking casters, and two 5" high-quality non-locking casters. With casters installed, you have the option of taking the table or equipment stand with you where you need to go, and then keeping it secure with the flip of a lever, conveniently placed at foot level for easy locking and unlocking. Unlike a stationary table, which needs to be carried by at least two people, the benefit of having casters attached makes it a one-person job that can be done quickly and easily. This caster set will raise your work table or equipment stand by 5". Make sure to factor this added height into the height of the kitchen furniture you intend to use.