This cart is ideal for moving large, bulky, heavy appliances, and awkward loads. A strap and tension bar are included with this unit to hold the product in place while transporting up or down stairways, hills, or uneven surfaces. Strap length is 60" for the APPL-500 and APPL-750-B. The 1,200 lb. capacity models include (2) 4" x 1" thermos plastic rubber swivel rear casters, as well as strap retracts. The strap rectracts (from ratchet center) 80" on one side/81" on the other. Robust design can move and maneuver heavy loads like vending machines throughout workplace with ease.