The M-D Easy-install Aluminum and Vinyl CINCH® Self-adhesive Door Sweep features a triple-fin vinyl seal for protection from drafts moisture dust and insects. Save on energy by sealing the bottom of the door and keeping the heat or air conditioning from escaping. Cinch products are the easiest to install since they do not require hardware. Simply peel the liner and stick it to the door. Before installation cut to the desired length by using a hacksaw.