Item Type: Phone PolarizerColor: BlackSize: Approx. 37mm or 1.5inMaterial: Metal, LensFunction: Remove reflection and increase saturation .wang-edit-text{ font-family:'Arial' important } .wang-edit-text table { border-top: 1px solid 000 border-left: 1px solid 000 } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000 border-right: 1px solid 000 padding: 3px 5px } .wang-edit-text table th { text-align: center } 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.