Designed specifically to cut through just the liner side of any vinyl films. Cut through the paper backing of a self-adhesive vinyl without the risk of damaging adhesive or cutting through the film side of your vinyl while on the liner. If used properly, the knife leaves no marks or cut lines in the film. The knife is made of steel and has a protective teflon coating on the protective surface of the knife which allows the knife to slide across the adhesive side with great ease. The knife comes with the blade which has 4 cutting edge and can be used in multi applications.