All our products are free of lead and nickel and other harmful and allergenic substances. Thanks to the galvanotechnical (electro-plating) process, our professionally refined jewellery is the quality that has been resistant to years and decades. Rubbing the finishing is completely impossible, even with daily wearing of the piece of jewelry. Our own tests over 11 years proved this. Not only the electroplating technology benefits our products, but also another additional protective layer that is used here, which seals the outer shell of the product body.