CETATEK aqua bionic snorkels incorporate high quality materials and modern design for years of enjoyment. Large bore designs are easy breathing and streamlined to reduce drag. Purge valves aid clearing and help to keep the mouthpiece area dry. Black snorkels are all black; colored snorkels have clear silicone corrugated hose and mouthpiece. Streamlined, splash-proof top guard helps prevent water entry. Available in four colors.