The product is made of metal brass - made of durable rhodium plating. It should be protected from factors such as perfume, bleach and alcohol. The skin acidity rate must be suitable for jewelery use. In case of skin with high acidity, the palm of the hand sweats a lot, which may damage the product. Produced in standard sizes. In order for an exchange or refund to be made, it must be done without opening the package or removing the product.