Master Lock 5420EC Set Your Own Combination Portable Box with Adjustable Shackle, Black, 6 Key Capacity

Adjustable shackle cinches lock box tightly and securely to most lever, ball, biscuit, and tulip door knob styles.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit. Set your own 4 digit combination lock box for easy combination recall, set and reset your combination allowing thousands of personalized combination code options For indoor and outdoor use, vinyl coated shackle and molded bumper prevent scratching, metal body construction for durability, weather cover protects combination dials from outdoor elements SPECIFICATIONS: External Dimensions: 7in (177.8) H x 2.875 in (72 mm) W X 2.06 in (52.50 mm) D Internal Dimensions: 4.188 in (106.37 mm) H x 2.375in (60mm) W x 1in (25mm) D Shackle Length: 75 in to 1.75 in (19mm to 44mm) Shackle Width: 1.406 in (35.71mm) Shackle Diameter: .375 in (9.52mm), Weight: 1.29 pounds, Manufacturer: The Master Lock Company