From opticaled glass and wear-resistant aluminum alloy frame for added durability Easy Installation: This filter is equipped with easy-to-use clamp that allows you to quickly install it on your cellphone lens without any tools Lightweight & Portable: small size and lightweighted design, easy to carry around Reflective Effect: Unique reflective design enhances the layering of photos and makes every picture more fascinating Multifunctional Design: This reflective filter for cellphones is suitable for all models of cellphones to make photography more professional