The Promaster UV Filter (4857) is a high-quality circular filter with a clear color, specifically designed for cameras. It features a threaded mount fitting and a 77mm filter size, making it compatible with various camera lenses. This filter is ideal for reducing glare and enhancing image quality by blocking ultraviolet light, resulting in sharper and more vivid photos. With the trusted ProMaster brand and never been used, this filter is a reliable accessory for photographers looking to improve their images.