Description Predrilled, non-reflective heavy-duty plate can be attached for horizontal or vertical applications. Address plate and house numbers combine to improve visibility. A supply of (40) 3? reflective numbers are included. Attach to mailbox post, fence or tree. Assists emergency personnel, fire and police departments by easily identifying address at night or in low visibility. WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov