Under Door Noise Stopper: The 36 inch door stopper for bottom of door keeps the cold air out and the heat in with both sides protection. Great for blocking noise and fumes. Excellent Material: The under door noise stopper is made of soft plush cloth, heavy-duty and lightweight. Adjustable Dimensions: The foam tube in this under door stopper can be cut, apply to door length from 35"-36" (length can be adjusted), door width from 1"-3", door gap at most 1.5" high. Easy To Care: The under door noise stopper can be quickly cleaned by machine, no more hand wash, save your time and free your hands (NOTE: The door stopper can be easily move with the door and glides over smooth floor, may not work well on rough ground). Muti-location Use: The insulation under door stopper can be used for your front door, back door, garage entry door, bedroom door, bathroom door, it is also suitable for windows to help seal in hot or cold air.