Frames are made from acetate, a plant-based material derived from wood pulp and cotton, making it stronger and more durable than standard plastic Polarized lenses with UV400 protection are designed to block 99% of reflected light and 100% of UV light CR-39 lenses are durable, scratch-resistant, and provide maximum visibility Shape: Square Includes a protective hard case, a microfiber fabric pouch, and a cleaning cloth Origin: Shenzhen, China Frame Measurements: Eye 51mm, Bridge 18mm, Temple 142mm Hinge to Hinge Measurement: 130mm Intended fit: wide Gently clean the lens with a damp cloth, wiping in the same direction.