Item Type: Phone Polarizer Color: Black Size: Approx. 37mm / 1.5in Material: Metal, Lens Function: Remove reflection and increase saturation Main Purpose: 37mm universal circular polarizer for mobile phones, mainly used to remove reflection and increase image saturation. Clip On Design: The mobile phone polarizer filter features a clip-on design that can be easily attached to the mobile phone, providing stable and reliable performance. Fine Processing: The polarizer has an ultra-thin aluminum alloy frame with CNC processing, making it lightweight, durable, and resistant to deformation and corrosion. Other Parts: The lens protection cover helps extend the product's service life. The metal threaded hole clip is designed to fit various phone models. For Photography: The CPL polarizer filter is an ideal choice for outdoor photography, enhancing color richness and image clarity.