Item Type: Phone Polarizer Color: Black Size: Approx. 37mm / 1.5in Material: Metal, Lens Function: Remove reflection and increase saturation Package List 1 x 37mm CPL Filter 1 x Filter Protection Cover 1 x Metal Threaded Hole Clamp 1 x Filter Wiping Cloth 1 x Storage Bag 1MAIN PURPOSE: 37mm universal circular polarizer for mobile phones, mainly used to remove reflection and increase image saturation. 2CLIP ON DESIGN: The mobile phone polarizer filter is clip on design, which can be easily fixed on the mobile phone, stable and reliable. 3FINE PROCESSING: The polarizer uses ultra thin aluminum alloy frame, with CNC processing, light and durable, not easy to deform or corrode. 4OTHER PARTS: The lens protection cover extends the service life, the metal threaded hole clip is large enough to adapt to different models. 5FOR PHOTOGRAPHY: The CPL polarizer filter is an ideal choice for outdoor photography, which makes the image look more colorful and full.