Claire's Eco Store are delighted now stock the Ecoflap letterbox draught excluder. It fit on the back of your letter box, and is designed to dramatically reduce draughts and from your home. It's very quick and extremely simple to install, and starts saving you energy immediately. The Ecoflap letterbox draught excluder (available in white, brown and black) replace the brushes, seals and outward opening gravity flaps on the inside of the letter box, traditionally used to help keep draughts out. The difference being that an Ecoflap letterbox draught excluder uses the wind to blow it shut! It is 100% draught proof, and adjusts automatically to any size of post delivery - up to A4 and including most newspapers and magazines.