This twin draught excluder helps to insulate doors and windows around the home by blocking the cold air out, and keeping the warm air in. It moves with the door when opening and closing as it fits to the underside, simply cut to size to fit your door. The outer polyester cover can be removed and machine washed in cold water. It is called a 'twin' as it is double sided, offering protection for both sides of the door, and having a much lower profile than a classic draught excluder that just pushed up against one side of the door. 83cm Long and can be cut smallerSuitable for doors and windows 5cm thickCan be used on internal and external doorsMachine washableProtects against draughts, dust, insects, and odours