Swimming Training Snorkels - The swim snorkel with spout allows smooth airflow and provides healthy amount of oxygen while lap swimming, triathlon and maximize speed by 35%. Comfortable & Quick Adjustable Head Bracket: Makes for quick strap adjustments and universal fit, even with swim cap and goggles! No screwdriver is required. Optimized Mouthpiece - Durable food-grade and odorless medical-grade silicone, fits perfect in mouth and keep the snorkel in place, one-way purge help to drain the water entirely during exhale. Perfect size for adult men women youth and kids age 8+. Hydrodynamic Design - It has a sleek hydrodynamic design which allows swimmers to swim effortlessly with minimal water resistance. Compatible With Most Strokes: Stays in place for freestyle, butterfly, ,breaststroke etc. Center Mount Design - Front mount features snorkel ensures smooth arm rotation and maintain body alignment and improve stroke efficiency.