HEAVY DUTY: Those Signs are Made of thick high quality materials that is water proof and UV heat resistant. SAFETY: Great and Safe way for U.S. Mail Carriers to identify their vehicle and keep them safe. VERSATILITY: Reusable and versatile U.S. Mail Rural Delivery Carriers magnetic signs that can be used over and over. MADE IN THE USA: These are made in our facility in Wichita, KS. 100% SATISFACTION GUARANTEED: We're so confident that you'll love our product, that we'll give your hard-earned money back if you're not thrilled with your purchase. Contact our friendly customer service team to make it right. It's all on us - so there is zero risk to try the product today!