This Tiffen 4x4" Glass Filter in a cool blue color is perfect for your photography needs. It is designed to convert the color temperature of your images, giving them a unique and vibrant look. The square shape and drop-in mount fitting make it easy to use with your camera and other equipment. This filter has a size of 4x4 inches and is made by the well-known brand Tiffen. It is suitable for use with cameras and photo equipment and falls under the categories of filters and lenses. Whether you're a professional photographer or a hobbyist, this filter is great for adding a pop of color and style to your images.