Item Type: 37mm CPL Filter with Dual Hole Clip for Mobile Phone Photography Product Material: Plastic, CPL Polarizer Product Size: Approx. 37mm / 1.5in Large Diameter Color: As Pictures Shown Weight: Approx. 100g / 3.5oz Package List 1 x 37mm Circular Polarizer Filter 1Anti Glare: 37mm circular polarizer filter can reduce light distortion, and have excellent anti glare characteristics. 2Coating Technology: The coating technology greatly reduces the brightness and phantom effect of the lens. 3Ultra Thin Edge Profile: Ultra thin edge contour to avoid vignetting in wide angle lenses while maintaining rotation. 4Adjust Polarization Level: 37mm circular polarizer filter has the ability to adjust the polarization level. 5Sturdy and Durable: 37mm polarizing lens filter has super sturdy construction and high durability.