Steve and Leif Pile Weather Strips 7X12Mm Door Seals 4 Meters (Grey) is Sealing the gap between door and frame for an exceptional acoustic and smoke containment. The seal will fill up air gaps effectively at the window/ door frame to maximize sound, light, smoke and dust entering from the outside. Self-adhesive. Made of cellular EPDM (ethylene-propylene rubber), can be cut into any desired size to fit door/ window?gap. Not suitable for sliding windows and doors. See mroe at http://stevenleif.com/cat/epdm-weather-strips/ -Solutions for Smart Living