Digital lock box with dual locking capability providing added security. Programmable lock with 2 override keys for quick and easy access. Features durable double walled steel construction. Includes soft interior lining protects fragile contents from scratching. Carry handle for added convenience and flexibility. Capacity: 0.21 cubic feet. Interior Dimensions: 12 In W x 4.3 In H x 8.9 In D. Requires (4) AA batteries， not included.