Universal Thermostat Guard, Inside Height 4 5/16 In, Inside Depth 2 1/2 In, Inside Width 4 3/16 In, Outside Depth 2 7/8 In, Outside Height 5 5/16 In, Outside Width 5 3/16 In, Finish Box Clear, Base and Ring Beige, Material High Impact Plastic, Not Hinged, Mount Horizontal or Vertical, Includes Box, Solid and Ring Base, Mounting Hardware, 2 Keys