The Master Lock No. 7148D Locking File Box is made from durable steel construction to stand up to daily use. The file box measures 13-1/2in (34.3cm) W x 10-1/2in (26.7cm) H x 6in (15.2cm) D. The keyed lock safely protects and secures your personal documents. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.