Anti-Fog & Ultra Wide VisionThe inner surface of these swimming goggles has been treated with anti-fog coating, one piece frame design enables crystal clear and ultra wide vision under water. Kids can focus on the joy of swimming with them on. Ergonomic design & No Leaking3D Ergonomic designed cup and super elastic strap, which can reduce the pressure around the eyes. Years of design and manufacturing experience, the anti-leakage effect protects children's eyes from the harm of chlorine and raccoon eyes. Skin Friendly Silicone & Comfortable FitChildrens swimming goggles made from non-toxic and super soft silicone, Comfortable, skin-friendly, reduce friction with the eye socket and avoid redness and swelling. One Click Open Buckle & Easy AdjustmentOne click open buckle and adjustable clasp, supports easy put on and take off, without getting kids' hair tangled. they are suitable for kids 4-12. Instructions for use & after-sales serviceDo not touch the lenses inside surface by hands or any sharp tools, or it will damage the lenses, damage fog function.One year warranty.