Safety:the ear sticker is made of a soft, breathable, safe and environmentally friendly PU film, allergy free. Multi use: protects the inner ears from water damage and prevents water from reaching wounds. Suitable for swimming or showers, as anti-abrasion heel to prevent blisters on the heel. It's also as anti-friction sticker for belts, hats, jewelry, etc. Easy to carry: swim ear stickers are compact and portable, so you can put them in your luggage when traveling, then your children can enjoy the beach and play with enthusiasm. Full Design: the baby bath ear cover is equipped with a cotton ball, which further blocks the flowing water, while the transparent disposable outer film covers all ears, giving you double assurance. It helps to keep water out of the ear canal, it is easy to find in the pool or bath. How to use: tear the protective layer, stick it to the ear, then fold any excess sticker behind the ear, smooth the sticky side with your hand to make sure the ear protector adheres and seals completely around the ear.