Description: Advanced Noise Reduction: Our earplugs are designed with human ergonomics in mind, fitting closely to the shape of your ear for a lab like noise reduction experience. The in ear design and nano silicone material ensure all day comfort without discomfort, providing additional passive noise reduction through physical soundproofing.Comfortable and Effective: Made from soft silicone with a thickness of only 0.4mm, these earplugs fit snugly inside your ear. The three-layer noise reduction design effectively reduces noise by up to 40dB, helping you regain a quiet world and peace of mind in your daily life.Secure: The support design ensures the earplugs stay firmly in place without causing discomfort, even when sleeping - no need to worry about them accidentally falling out. Crafted with a human like ear design and soft comfortable material for long term wear without pain.Four Layer Physical Noise Reduction: Our four-layer noise reduction technology maximizes the width and depth of soundproofing for an enhanced deep noise reduction effect (1+1+1+1>4). Simply put on these earplugs to feel the distance between you and the world.Sturdy and Versatile: Made from silicone that is soft yet effectively fits the contours of your ears, these earplugs have a lifespan of approximately 1-2 years; they can be cleaned with water or hand soap and air-dried for repeated use without deformation due to their good elasticity and memory function. They are not only great for reducing noise but also waterproof - suitable for swimming, training or playing in water. Specification: Earplugs:3cmx3cmx1.7cm/1.18inchx1.18inchx0.67inchStorage Case:4.5cmx4cmx2.5cm/1.77inchx1.57inchx0.98inch Package Includes: 1 PairEar Plugs1 Storage Case