Hy-Ko 911 Address Plate, Green/White, 6 in L, 18 in WPredrilled, 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 in 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. Unit: EA UPC: 029069009113 Model Number: 911