The M-D PVC Sponge Tape Window Seal is designed to protect against drafts, moisture, dust and insects. Save on energy by sealing windows keeping the heat or air conditioning from escaping. Made of PVC closed-cell sponge, this seal exhibits great sealing properties for a window. The seal provides medium resistance to wear and tear and high water resistance. The self-adhesive design is easy to install by simply pressing onto a clean and dry surface. No hardware required. Before installation, cut to desired length using scissors.