To apply, peel and stick the angle to a clean, dry surface of your floor. These angles are 50 MIL thick that does not leave a residue when removed. Mighty Line Angles are used to keep pallets and machines organized. By assigning machines and pallets locations with these angles, you are creating a safer more efficient workspace. These angles have a beveled edge and are thick enough to withstand industrial wheel traffic. These angles have a 3 year warranty.