This is the IST SN204 Dry Top Snorkel for Scuba Diving and Snorkeling Features: DRY-TOP TECHNOLOGY - External splash guard prevents water from getting into the tube. ULTRA-COMFORTABLE - Mouthpiece features bite tabs to reduce jaw fatigue. FLEX TUBE - Corrugated center hose falls away from the face when not in use. EASY PURGE - Features a generous purge chamber and valve. 5 FUN DESIGNS - Available in five sporty colors to match your dive style. Dry Top Snorkel for Scuba Diving and Snorkeling