4" x 100', Tite Seal Self-Adhesive Waterproof Flashing, For Doors & Windows, Saves Energy, Stop Your Heating & Cooling Dollars From Leaking Out Around Your Doors & New Windows, Keeps Out Drafts & Moisture, Eliminates Expensive Leaks Around Windows, Doors & Skylights, Can Also Be Used On Chimneys & Sheathing Panels. Eliminates expensive leaks around windows, doors and skylights. Keeps out moisture and drafts. Use on sheathing panels and chimneys. Shrink wrapped. Tite seal self-adhesive waterproof window and door flashing save energy stop your heating and cooling dollars from leaking out around your doors and new windows keeps out drafts and moisture.