Cave or wreck divers in confined spaces can accidentally lose their regulator. Regulator Necklace is derived from technical divers that had a need to keep their regulator close when needed. The rubber Regulator Necklace is perfectly designed to fit around a diver's neck, with or without a hood keeping your air source close. Loop in necklace is designed to be stretched around your second stage regulators mouthpiece boss to secure the regulator. Neckless is bright yellow in color.