Keep trucking along with your birthday decor. Add the Plastic Happy Birthday Yard Sign to your party supplies. This yard sign is perfect to add to any front yard. Simply slide the "H" shaped metal stake into the bottom and place in a grassy area. Each inexpensive piece is printed on plastic like material to help withstand various weather conditions. The yard sign reads "Happy Birthday" with shapes printed in the background. Measures 11.5 inches by 15.5 inches in size.