The Bower VFK55C is a digital filter kit, which consists of three filters UV, CPL and ND digital high resolution 55 mm filters. Ultra Violet (UV) filter protects your camera lens and provides correction for UV light. Circular Polarizer (CPL) filter increases color saturation, removes unwanted reflections from glass/water. Neural Density filter (ND) reduces the amount of light reaching the film without affecting the color. It also includes filter case, 55 mm lens cap and cap keeper.