The Master Lock No. 7120D Locking Storage Box is made from water resistant nylon, for durability. The storage bag comes with a built in high security lock and 2 keys, for convenience. The storage bag measures 11-1/2in (29cm) W x 8-3/8in (21cm) H x 1-3/8in (34mm) D. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.