EZ Edger is a patented masking tape dispenser designed to help auto body painters achieve the smooth blended finish. EzEdger automatically folds under one edge of any 3/4" tape as the tape is dispensed. This rounded edge helps to disperse the paint during a spray and allows smooth transitional finish. No more hard tape lines. (Tape not included.) With regular masking tape, paint spray will build up on the edge. This build up will form a ridge when dried. Once the tape is removed, you are left with a rough tape line equal to the tape thickness. With the folded edge tape dispensed from an EzEdger, the tape floats slightly off the surface allowing paint spray to disperse along the tape line. This blending results in a smooth feathered edge. A big time-saver. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.