No need to lug around a ladder and a cart—these carts do the job of both. A foot pedal on the bottom step activates the built-in floor lock that secures the cart for use as a ladder; step off the ladder to release the floor lock. For ease of steering, carts have two swivel and two rigid casters with nonmarking, polyurethane tread-on-core wheels to absorb shock on rough floors and in areas with debris. Nonmarking rubber feet on the rails protect floors when the ladder is in use. A flush top shelf provides a smooth work surface, while the lipped bottom shelf contains spills and prevents items from sliding off.