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