Large capacity key lock boxes enables secure storage of up to five standard (2 inch) house keys; Shackle fits most ball, biscuit, and tulip door knob styles Set your own four-digit combination lock box; Reset the combination for thousands of personalized combination code options For indoor and outdoor use; Key safe is constructed with a metal body for durability, vinyl coated shackle to prevent scratching, and shutter door to protect combination dials from weather SPECIFICATIONS: Exterior dimensions: 6-1/4 in (158.75 mm) height, 3-1/4 in (82.55 mm) width, 1-1/2 in (38 mm) depth; Lock box shackle is 1-13/32 in (36 mm) long, with 1-7/8 in (48 mm) width, 13/32 in (10 mm) shackle diameter Capacity for 5 standard (2 inch) house keys; Interior dimensions: 1 in (25 mm.) height, 2-13/32 in (61 mm.) width, 1 in (25 mm.) depth; capacity for 5 standard keys.Includes five set your own combination lock boxes, Weight: 1.0 pounds, Manufacturer: Master Lock