Galvanised steel construction; Powder coated body; Weather resistant letter slot; Key lockable (keys included); Easily fitted to timber, brick or steel walls/fences (fixings included); The Vault Letterbox is constructed from galvanised steel and powder coated. Features included are the extra large letter slot for all of your A4 mail and documents, newspaper holder and key lockable door for added security. The Vault is easily fitted to all walls and fences.