Channel letters are three-dimensional signs commonly used for business storefronts. They are typically made from metal or plastic and can be illuminated from within, making them highly visible both day and night. Each letter is individually crafted, allowing for various fonts, colors, and sizes to match a brand's identity. These signs are often mounted directly to a building's facade, providing a professional and polished appearance. Channel letters can be customized with different lighting options, such as LED or neon, enhancing their visibility. They are a popular choice for businesses looking to attract customers and improve their overall signage.