Signs are 11-1/4" by 11-1/4". Available in two materials: Plastic - High density polyethylene - .024 gauge - with maximum ultraviolet resistance for long outdoor durability and colorfastness. Aluminum - .012 gauge Aluminum signs shown here. See below for information and pricing on plastic signs. Warning Absolutely No Motorized Vehicles Sign 188ANOA$1.30, 50/$52.50, 200/$194.00, 500/$455.00 Warning Absolutely No Motorized Vehicles Sign - Yellow PlasticAll signs are 11-1/4" by 11-1/4". High density polyethylene - .024 gauge - with maximum ultraviolet resistance for long outdoor durability and colorfastness. 188ANYP$0.85, 50/$37.50, 200/$130.00, 200/$305.00 Need more information? Please feel free to contact us at 1-800-592-6940 - Ask for Extension 547 or Internet Sales.