This is the JBL Hydro Seals Vented Preformed Protective Earplugs Aqua Ear Plugs For Scuba and Free Diving It Features: Ergonomically designed to fit the human ear Hydro Seals provide a comfortable way to block water intrusion Ensures a secure fit without the hassle of a leash Constructed of medical grade silicone Soft, dual baffles offer a unique double barrier against water entrance Hydro Seals provide a no-compromise solution to ear safety for the surfer, diver, and swimmers of the world Avoid swimmer&';s all-together and go with JBL&';s ultra comfort-fit ear plugs!