The Exitex Brown Letter Plate Seal With Flap is an essential accessory designed to enhance the functionality of your horizontal letterbox. It is crafted for internal use only and combines practical design with high-quality materials to provide effective protection against draughts, dust, and rain. Constructed from moulded high-impact PVC, this letter plate seal features a long-lasting bristle that ensures durability and effectiveness over time. The innovative spring-closing flap automatically seals the letterbox after each use, helping to maintain a comfortable indoor environment. The product is designed specifically for horizontal letterboxes, ensuring a perfect fit. It is available in brown color.