Thinkware CPL Filter | Compatible with All Thinkware Dash Cams, improve Colour Clarity, Eliminate Windshield GlareLens flares, light reflections, and windshield glares can significantly impact the quality of your dash cam footage. Eliminate these issues caused from moments of extreme brightness by easily installing THINKWARE Circular Polarizing (CPL) Filter. Simply use the guide points located on the CPL Filter to install this on any THINKWARE Dash Cam for enhanced colour clarity, and improved light exposure. Reduce glare and increase the quality of your dash cam