Master Lock 5423D Pushbutton Lock Box 

• Wall Mounted Design for Permanent Installation
• Convenient Pushbutton Locking Mechanism in Familiar Format
• Set-Your-Own Combination Using up to 12 Letters, Numbers or Both!
• Large Push Buttons for Ease of Use, Even in Low Light Conditions
• Large Internal Cavity and Removable Key Hook Prevents Jamming
• Protective Weather Cover Prevents Freezing and Jamming; Molded Lock Body Prevent Scratching
• Specs_Width: 3-1/8" (79mm) Height: 4-5/8" (11.7cm) Depth: 2-1/16" (5.2mm)
  
• Internal Dimensions: 3-1/2" (89mm) H x 2-1/4" (57mm) W x 2-1/16" (5.2cm) D
• Best Used For: Spare Key Storage & Access Card Storage, Security Gates & Fences