About this item 🐋【Safety Tempered-Glass Lenses】Ultra clear thickened tempered glass with safety film withstands deep water pressure for diving or swimming. Scratch-resistant for clearer underwater view. Note: avoid tossing on tile, jumping in with mask, or scratching with sharp objects. 🐋【180° Panoramic View & Anti-Fog】Advanced lens shape and thickened tempered glass with latest anti-fog treatment provide crystal clear underwater experience without blur or distortion. One-piece glass design enables better, wider vision. 🐋【Soft Nose Cover】Soft silicone nose cover compensates for increasing pressure as kids swim, snorkel, or dive. Helps children who don't know how to stop breathing through nose underwater. Ideal for snorkeling and recreational swimming. 🐋【Comfortable Soft Silicone】Leak-proof, comfort seal skirt and strap made of soft silicone mold to face shape for a watertight seal. No more leaks or discomfort. Soft liquid silicone face skirt fits a wide variety of boys and girls, reduces face water pressure, and seals well without worrying about water leakage during scuba diving, snorkeling, or swimming. 🐋【Easy Strap Adjustment】Mask fits children ages 5-15. Straps adjust easily by pressing mask's button buckle, which holds strap securely in place without slipping underwater. Tip to avoid leakage: tighten mask until silicone skirt fully absorbs on face.