This specific pack comes with the complete set which is both harnesses and a pair of center straps that are adjustable. This amazing product is for carrying items of all sizes. It’s especially great for carrying office partitions, desks, lockers, safes, woodworking machines, hot tubs, mattresses, furniture, appliances, HVAC units, cast iron bathtubs, etc. MovXing Cradle® encourages proper lifting techniques and employs leverage which makes the items being carried seem much, much lighter. Using this complete MOVING HARNESS set saves floors from scratches, dents, scuffs and scrapes that dollies and hand trucks can leave behind. Reduces back injuries due to heavy and repetitive lifting.