The M-D PVC Foam 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 foam this seal exhibits good sealing properties for a window. The seal provides resistance to water and overall wear and tear. 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.