The 8" Constrained Letter Set with 300 Count from Flex-Change is perfect for outdoor reader board letters. These changeable message sign letters are made of durable plastic and are 8" on a 9" back, making them easy to display. The condensed letters are designed for outdoor signs, providing a clear and professional message for your business or restaurant. Made in the United States, these portable sign letters are a convenient and versatile option for your outdoor advertising needs.