Self adhesive, washable and reusable up to 100 times. Adheres securely to skin, so you don't need to wear with a bra. They are made of high-grade, soft 100% pure silicone gel and are very easy to apply and maintain. Applies directly to the skin, without the need of special adhesives. Suitable for bathing suits, bras, sweaters, t-shirts, sport bra, alone or with any other style. The Silicone Gel Petals comes with a storage case. One Pair per Package.