Say goodbye to annoying callbacks due to beat up wall corners! Vacuum hoses are heavy and hard and can easily scratch, dent and otherwise damage walls. Normal corner guards allow you to protect your customers’ walls when the surface it’s resting on is flat, but what do you do when you’re running your hoses upstairs? The Duk Guard corner guards solved this dilemma by using adjustable feet that allow you to place the corner guard on uneven surfaces. Simply adjust the feet up or down to the desired height and work without fear of destroying your valued customers' walls.