The Master Lock 5400D Set Your Own Combination Portable Lock Box features a 3-1/4in (83mm) wide metal body for durability. The portable design offers removable “over the knob” installation. Set your own four-digit combination for keyless convenience and increased security. The shutter door protects combination dials from weather, dirt and grime; and molded body and vinyl coated shackle prevent scratching. The Limited Lifetime Warranty provides peace of mind from a brand you know and can trust.1

• Large capacity key lock box 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
• Exterior dimensions: 4 in. (10.2 cm) H x 3-1/4 in. (8.3 cm) W x 1-3/4 in. (4.4 cm) D; 13/32 in. (10 mm) diameter shackle with 1-13/32 in. (36 mm) L, 1-7/8 in. (48 mm) W
• Capacity for 5 standard (2 in.) house keys; Interior dimensions are shaped like an "L" with top section measuring 0.3 in. x 1.56 in. x 2.95 in.; bottom section measures 0.95 in. x 1.51 in. x 3.21 in.