The M-D Vinyl & Rubber CINCH? Slide-On Interior Under Door Seal features dual rubber seals for blocking light and reducing sound at the bottom of interior doors. Perfect for a nursery home office home classroom home gym dorm room theater room and more. The premium rubber seals are coated to reduce friction and drag across any kind of floor surface including carpet. CINCH? products are easy to install since they do not require hardware and simply slide on to the door. A compression fit secures the Under Door Seal to the bottom of the door. Before installation cut to desired length by using a hacksaw.