The 180° wide lens allows children to get a wide field of vision underwater. The Anti-fog coating lens enables the kids goggles to maintain a very clear view underwater. Anti-UV protective goggles made of polycarbonate can filter harmful rays and protect eyes from heat and sunlight damage. The soft silicone material makes the nose bridge not easy to damage and the double seal design equably adjusts underwater pressure. The convenient buckle and adjustable glasses strap help kids wear swimming goggles quickly and easily. Earplugs and Nose Clips give a better defense to beginners or children who have not learned to swim. Lens Material: Polycarbonate Mirror ring mirror strap material: silicone Size (L*W*H): 19.7x5.9x2.8 Package Included: 1x Children s swimming goggles