Carlisle Brass Letter Tidy 91 x 300mm (H x W) Polished Brass is designed to cover the letter slot. The letter tidy also known as letter flap, is coated with polished brass finish, making it versatile and possess the ability to withstand high temperatures. The flaps are curved to arch over the fixing of nuts or bolts of an external letter plate. The product is generally used inside of door hinged at the top as a internal letter plate. It is generally supplied with fixing screws. Withstands high temperature without deformation. Corrosion resistant. Recyclable making it eco friendly.