Minnesota Letters and Numbers are injection molded from renewable CAB plastic material, this process provides sharp crisp edges. Minnesota letters are painted with a robotic arm providing an amazing perfectly painted baked enamel finish. We also use this process on our cast and aluminum letters. sign letters come with a lifetime guarantee against fading, chipping or cracking. These sign letters are great for interior and exterior locations. Minnesota Letters provide the look of cast metal, are light weight, and inexpensive. White and black letters have pigmented finishes. Made to order in 2-3 days then shipped directly to you. Letters are easy to install with studs and an installation pattern showing you precisely where to drill your mounting holes, the letters can also be ordered with a variety of other installation methods. Precision and consistency are the hallmark of Minnesota Letters.