Features: 1. Earplugs are equipped with filters to isolate sound very well, and flying earplugs can reduce discomfort caused by the air pressure. 2. It has good waterproof performance and can prevent water from entering the ears of swimmers and bathers. 3. Selected high‑quality silicone materials, soft texture, non‑toxic, tasteless and environmentally friendly. 4. It fits perfectly to the ear canal and is widely used in swimming, showering, flying, sleeping, and water sports. 5. It can be used repeatedly, and the anti‑noise effect is very good. The earplugs must be cleaned after each use. Specification: Item Type: Ear Plug Material: Silicone + Stainless Steel Contains: Black Filter Earplugs + Flying Earplugs + Black Aluminum Bottle Weight: Approx. 24g / 0.8oz Product Use: Swimming, spa, sleeping, concert hall How to use and wear silicone earplugs: 1. Wash your hands and hold the earplug with one hand. 2. Go around the back of the head with the other hand, pull the ear upwards, and screw the earplug into the ear canal. 3. Then push the earplugs inward or shake them a few times until you feel a good fit. Package List: 4 x Earplug 1 x Sealing Bottle Features Superior Noise Isolation: Equipped with filters, these earplugs effectively isolate sound, providing a peaceful environment for sleeping, swimming, and flying without discomfort from air pressure changes. Reliable Waterproof Performance: Perfect for swimmers and bathers, these earplugs prevent water from entering the ears, ensuring a comfortable and enjoyable experience in the water. Premium Silicone Material: Crafted from high-quality silicone, these earplugs offer a soft, non-toxic, and environmentally friendly texture, providing comfort and peace of mind for extended wear. Versatile Fit and Application: Tailored to fit perfectly in the ear canal, these earplugs are suitable for various activities including swimming, showering, flying, and water sports, offering versatile protection and comfort. Reusable and Effective: These earplugs can be used repeatedly and deliver excellent noise reduction, making them a reliable and cost-effective choice for ear care. Remember to clean them after each use for optimal performance.