3M - Classic Large Gap lnsulation Seal White 6 m

Improve comfort and efficiency with this Insulation Seal. It's built from tough, high-density foam that really keeps hot and cold air where you want it and the sticky adhesive backing sticks right where you need it; just peel and press, no hassle. Its durable design holds up outside just as well as inside, so you can use it around doors, windows, or any gap that needs covering.