10 Yellow BLANK SIGN 18 x 24 inch x 4 mm and 10 Metal Rod Wire Stake 10x24 inch x 9 gauges - Great for any event. Add your own message in permanent marker or paint. OUTDOOR SIGN - Corrugated Plastic 4MM Sign Blanks 4mm Corrugated Plastic BLANK SIGN. Corrugated plastic is great for signs and craft projects. This material is sturdy, weatherproof and reusable. Great for yard decorations. From high-quality materials for elegance and extra durability for reusable. 4mm high grade corrugated plastic blanks sign. It is durable and reusable. Use for indoor or outdoor use - Waterproof and Wind Resistant! Display in your lot, front yard, lawn, garden or any area with grass! Great for garage sales, parties, businesses, arts, kids craft project or events,lawn signs. 4mm Corruagted Plastic Sign Blanks Yard Signs, Lightweight 4MM White Short Flute Sheets, Great for Display and Packaging Great for UV Flatbed and Screen Printing, Yard and Cut-out Signs