Yellow Mighty Line 1" Rounded Angles are 1" wide, and 4"x4" long. Rounded angles are shipped in packs of 100 angles. To apply, peel and stick the angle to a clean, dry surface of your floor. These rounded angles are 50 MIL thick that does not leave a residue when removed. Mighty Line Rounded Angles are used to keep your personal workspace clear. These angles have a 3 year warranty.