1. noise blocking: These silicone earplugs are made of soundproof material that effectively reduces noise up to 27 dB. With such good noise reduction, you can enjoy a peaceful sleep, work or study. Block unwanted noise and focus on your task. 2. Moldable Fit: Our silicone earplugs are designed to conform to the shape of your ear canal and provide a warm and comfortable fit. They prevent dust from entering the ear canal and protect your ear health. Whether you are sleeping, swimming, traveling or working, our earplugs won't fall out or become uncomfortable. 3. Easy to maintain: Keep your ears protected and clean with our silicone earplugs, which are washable and reusable. They do not lose their shape or elasticity and provide comfortable hearing protection after use. 4. Waterproof ear protection: With this function, our silicone earplugs reduce the noise of water and stop water from entering the ear canal, ensuring comfort during swimming or other water activities.