The set is made of safe materials, non-toxic to the environment. The varnish completely separates from the surface of the nail and can be removed quickly and safely. Polished nails can be covered with glitter using a glitter sprayer and then dried under a blow dryer that dries the nails. The set contains everything you need to take care of your nails: polishes, file, separators, glitter, nail applications, glitter machine and nail dryer. The game develops manual skills, encourages creativity and develops patience.Dryer Power: 2 x AA batteries (not included)Glitter Machine Power Supply: 2 x AAA (not included)