Comfortable and soft silicone noise cancelling ear plugs are made of high-quality German nano-silica gel, which is delicate to the touch, super soft, 100% skin-friendly, can bring you maximum comfort. The silicone earplugs are anti-aging, with good elasticity and memory function, washable and durable, can be reused thousands of times. Noise Cancellationear plugs for sleeping can soften sound sources and reduce noise, making sure you still hear everything, just a little quieter. NRR 32 (Noise Reduction Rating), protect your hearing from high damaging decibel levels, bring you a quiet environment in noisy place, avoid depression and tinnitus, perfect companion for sleep, snoring, focus, travel, relax. Excellent WaterproofOur ear plugs for swimming have 3 layers of leafs - small, medium and large -that effectively stop water from entering the ear, making them suitable for waterproof use in any situation. silicone ear plugs can be used not only for swimming, but also for showering, surfing and kayaking. In the long run, it's the perfect earbud for watersports lover. ERGONOMICALLY DESIGNThe noise reduction ear plugs designed according to the structure of the human cochlea are placed close to the inner side of the ear and placed flat on the outer ear to make it more comfortable and close to the ear. Snap the ends of the earplugs over your ears so they don't fall out during exercise. Suitable for people over 12 years old, suitable for men and women.