Pre-moulded earplugs from 3M with tri-flange design to help them sit comfortably in your ears. They are easy to insert using the stem that connects onto the cord. The cord attaching the pair of plugs together is great for storing the plugs around your neck when not in use, and prevents them falling onto the floor. The plugs are reusable and easy to clean. Also included, a storage box designed to clip onto your belt helps keep the plugs clean and in a convenient place.