The Master Lock 5420D Lock Box, Resettable Combination and Adjustable Shackle features a 2-7/8 in. (72 mm.) wide metal body for durability. Combination lock box includes an adjustable shackle for secure use on almost any type of door hardware. While other lock box models can be easily removed from lever style handles, the 5420D cinches tightly and securely to most types of lever styles. Portable lock box also fits securely to knob and handle hardware styles, providing a secure storage location for spare keys and access cards.