【Fits Most Head Sizes】The snorkel set features a fully adjustable head strap. Use the button buckle to adjust the strap length to fit all head sizes, suitable for both men and women. The ultra-soft silicone skirt is comfortable and can fully conform to almost all face shapes, so you don't have to worry about water leakage. 【Enough Fresh Air Intake】Compared to a full-face snorkel mask, this snorkel tube and goggles set provides more fresh air, preventing you from rebreathing your exhaled carbon dioxide. 【Anti-Fog Tempered Glass】The scratch-resistant tempered lens features an anti-fog coating, providing super crystal-clear underwater vision. The mouthpiece is made of environmentally friendly, non-toxic, food-grade liquid silicone material, which is safe and comfortable. You can dive and swim freely. Easy Installation: 1. Press the snorkel mask around your eyes and nose. 2. Breathe deeply to ensure the mask fits snugly against your face. 3. Press the button on the head strap and adjust the length. 4. Press the button on the snorkel tube strap and attach it to the mask strap. Specifications: Color: Yellow Material: Silicone Size: Diving mask: approx. 17 * 11 * 7cm Snorkel: approx. 45 * 3 * 11cm Package Includes: 1 x Snorkel Set