This Ring Shaped Kerf Weatherstrip, is a hassle free way to insulate your kerf door frames and prevent infiltration of sound, water and drafts through the door cracks, making your home more energy efficient. Its convenient design does not require adhesives, making it easier to remove and install than other forms of weatherstripping. Product is sold in pre-cut strips can be easily resized with household scissors. Seal is extruded from high-grade Silicone. The seal remains stable in temperatures of -22º to +220º F, though it can withstand higher temperatures for a short period of time. Seal is compatible with gaps with a minimum space of 1/16" and maximum space of 3/8". To install, simply insert the extending fin into a kerf, or groove, and push in with the aid of a putty knife to get a tight fit. This item Does Not have a peel and stick adheisive it is kerf friction fit only