Our products are laser cut from 16 gauge steel. They are then primed and painted with an acrylic polyurethane paint for durability. Our products are designed for indoor and outdoor enjoyment. Designs may vary slightly from the images. This design does come with mounting holes. Sizes are approximate. This custom design allows for 5 number characters. No dashes or hyphens are available with this design. All sales are final with custom orders. Please contact us if you have further questions. This product is processed and shipped within 2-4 weeks from order.