1. Anti fog Panorama Snorkel Set made of tempered glass: The snorkel mask is made of impact resistant tempered glass that withstands the impact of sharp objects and the pressure of deep water comes first. The advanced lens curve design provides a wider field of view underwater. The glass of the diving mask has been specially treated with anti fog, so you can enjoy a crystal clear underwater experience. 2. SNORKEL SET FOR ADULTS: The snorkel set for adults features a fully adjustable headband. The improved button buckle allows easy adjustment of the strap length to fit all head sizes. Advanced silicone face skirts adapt to almost all face shapes and are suitable for both men and women. The snorkel set is suitable for both professionals and beginners. 3. Compatible with action cameras: With this unique design, you can mount your favorite camera to record your fantastic underwater adventures and unforgettable snorkeling moments. 4. Professional silicone material, and comfortable: The snorkel mask is made of high quality liquid silicone, very soft, extremely comfortable and does not hurt the skin. The soft silicone edge of the diving mask perfectly adapts to various face shapes and forms a complete waterproof seal, which is very without worrying about water leaks.