This Item Includes: 1. Circular Polarizing Filter 2. Nwv Direct Microfiber Cleaning Cloth. Circular Polarizer provides color and contrast enhancement. Reflected light often shows up as a whitish glare that washes out color in an image. A polarizing filter will correct this problem creating deep blue skies. It also removes glare from non-metallic surfaces such as windows and water.Warranty: 10 year manufacturer.