M-D 4-in x 2-1/2-in White Outlet Seal Foam Switch/Outlet Weatherstrip (6-Pack)

Prevents cold air from entering home and reduces heat loss. Fits standard size outlet plates. Insulating foam that easily installs underneath standard size outlet places. UL Listed. Invisible after installation. 5-4/5-in W X 1/8-in H X 5-in L.