Colorful, durable plastic write-on boards are a great way to teach street signs or even to help control outdoor traffic on your faciliites. Each 8-1/2" x 11" sign is printed with street sign graphics on one side and blank on the other. The printed side of the signs are coated to help protect against scratches and the coating is compatible with most write-on, wipe-off markers. Made from polypropolene board material. Inserts are designed to be used with and slide into our W10631 Polycone Toppers. Set of 6 signs includes Stop, Go, Yield, No Parking, Slow and Do Not Enter.