Eveline Diamond Hard and Shiny Nails is a professional nail strengthening treatment that helps achieve stronger, healthier nails. This innovative formula contains diamond particles to enhance nail hardness and create a brilliant shine. Currently available in a special buy 2 get 1 free offer. This is a personal care/cosmetic product aimed at nail treatment and enhancement. As per standard practice for personal hygiene products, detailed features are not listed. Please consult product packaging for complete usage instructions and ingredients list. The promotional offer of buy 2 get 1 free represents significant value for regular users of this nail care product.