Easy to install: adjustable size for most homes; Please measure the gap and width of the door before purchasing and keep the door clean to ensure our draft stopper works as intended； Large size sponge is not ordinary slender sponge, which will not move with the opening of the door Hook and loop fastener design, keeps foam tubes safely inside even with constant opening and closing of doors Block light and windshield, it can block the cold/hot wind/smoke outside, making the indoor more comfortable Can be recycled without damaging the door, detachable bag, can be repeatedly washed and used, can be machine washed; Please keep low temperature when drying Large Door Draft Stopper - When winter comes, this Large door draft stopper prevents the heat air from your AC system from escaping your room, simply effective in managing your heating and cooling bills! It’s also an outstanding soundproofing tool and can shut out noise and somke. It also filters out 90 percent of the sun’s rays. So they’re perfect to hang in the bedroom of a late-morning sleeper or someone who works a night shift.This draft blocker stays put as it easily slides back and forth across the floor. It also adjustable and can easily fit the length of your door (30 to 36")FUNCTIONS YOU WANT-Adjustable size 30 to 36"Cover to door gap up to 1.8"Against odor, noise, wind and lightDouble sided = Providing double the protection