Burg Wächter Door Security & Furniture Letterbox 621478 - Burg Wächter 61110, The Burg Wächter 61110 MAIL 5877 E is a robust wall strongbox designed for secure mail collection. Made from steel, it offers durability and protection against tampering. This flush-mounted letterbox is ideal for both residential and commercial use. Burg Wächter 61110 MAIL 5877 Letterbox Steel C4 Slot 2 Keys EN 13724