1. Comfortable silicone material: Thanks to the combination of soft silicone material and comfortable shape design, these reusable earplugs fit well in your ear without falling off, and you feel comfortable even when wearing them for a whole day. 2. Noise reduction and hearing protection: These earplugs can be used for sleep hearing protection and also as noise reduction earplugs, allowing you to sleep, learn, and work better in a relatively quiet environment. Additionally, you can wear them while swimming and enjoy swimming lessons for a few hours. 3. Reusable and washable: The silicone earplugs are reusable many times. Wash them clean after use and dry them for future use. Thanks to their compact size and portable box, you can take these earplugs anywhere. 4. MultipurposeSilicone earplugs can easily block all kinds of noise. They are the choice for construction sites, factories, commercial areas, flying and travel, sleeping, swimming and other water sports, concerts, and many other noisy events.