[easy installation]: clip on cpl phone camera lens, just clip the lens firmly on your phone with the attached clip, easy to install and remove.universal for most smartphones. [durable material]: the polarized phone camera lens is made of high quality optical glass material, clear, lightweight, wear resistant and durable to use. [package including]: 1 cpl filter, 1 clip and 1 storage bag. [37mm circular polarizer lens filter]: 37mm cpl polarizing filter lens, eliminates reflection, improves color saturation and contrast, and makes good image quality without distortion.polarizers are composed of a lens body and a rotatable back frame.the intensity of reflection can be adjusted by twisting the lens. [portable size]: compact and lightweight polarizer lens filter, portable and detachable, easy to use and carry.cpl polarizer can eliminate polarized light, eliminate reflections on glass, metal surfaces or water surfaces, and deepen colors, a practical phone photography accessory when traveling.