well thats what every body else calls the stuff

it's really called

"tite seal" self-adhesive weatherproof flashing "saves energy!!!"

for windows and doors

prevents mold

eliminates drafts

keeps out moisture

1 roll- 4" x 33'

seals two average windows



well thats what it really is and i bought 4 of 'em

$6.98 for one roll at lowe's in the roofing section

 

I dont get it.