Hysterical birthday yard signs from the 80s and 90s are the perfect party decorations to throw a surprise celebration for a friend, loved one, parent, neighbor, or spouse. These funny birthday yard signs are made from 4mm corrugated plastic and stand at 15-inches tall by 23-inches wide. "H" stakes are included for the perfect fit and support. The durable corrugated plastic is printed with water-proof inks and UV resistant so that the happy birthday yard signs will not be damaged in the rain/snow or fade in the sun. Choose to display your happy birthday message in the yard or use on with a car decoration kit for a birthday parade. When your special guest sees this, they will be delighted by this yard sign!