M-D Building Products 2097 M-D 0 Low Density Open Cell Self-Adhesive Foam Tape, 17 Ft L X 1/2 in W 3/8 in T, Gray, H Resilient open cell foam tape that compresses flat to form a seal Highly compressible to seal uneven gaps Easy, self-adhesive application seals top and sides of doors and windows Open cell polyurethane foam 3/8-inch thick by 1/2-inch wide by 17 feet long