Shatterproof and weather resistant. Select a location on a wall that is out of direct sunlight. Depending on surface material, you may need to pre drill a hole to install mounting screw. Installation should be made using a 1-1/2 #8 screw (not included).Drive screw into surface leaving approximately 1/2 protruding. Line up hanger over protruding screw head and slide down until the unit is firmly in place. Weather resistant.Shatterproof.Bold easy to read numbers