They’re a pair of ADJUSTABLE STRAPS THAT EMPLOY LEVERAGE which makes the item being carried seem MUCH lighter! The straps are used for moving heavy items of different shapes and sizes. They’re used to safely lift furniture, appliances, mattresses and other pieces weighing up to 800 lbs. while encouraging proper lifting techniques which reduce back injuries. Not only that, they’re high quality, easy to use, affordable and simple to set up.