From the manufacturer Fit For Children Yizerel Kids Swim Goggles have wide & thick silicone eye socket for fitting most kids' faces, which provide perfect waterproof function & comfortable wearing experience. Enjoy 180-degree wide angle vision & swim with your lovely kids! Product description Length of Strap: 12.6 in (Max), 8.3 in (Normal) Size of Frame:A：5.9 in (Width) B：2.2 in (Height) C：Width of Nose Clips: 0.8 in D：Width of Lens: 5.3 in Comfortable: Wide & Thick Silicone Eye Socket Quick Wear On & Off: Quick Button Make It Easy To Put On & Off Without Hurting Your Kids' Hair High-quality Lens Features Super Anti-fog Function & Uv400 Protection