Invented by Mauna Kea Divers on the island of Hawaii, the Innovative Scuba Gel Cell mouthpiece features space age materials and manufacturing technology. Each bite tab is filled with a proprietary liquid silicone blend and is manufactured using a unique two part molding process. The liquid gel bite tabs on the Gel Cell provide a soft, yet firm grip. During use, the gel cells form to your individual bite characteristics. This provides comfort not typically available in a mouthpiece this simple and inexpensive. Designed soft enough to fit any regulator or snorkel, the Innovative Scuba Gel Cell is a step up in comfort.