Does your child like nice stones? In that case, give him an experimental set of shining crystals that will surely please him. Your little geologist himself produces his own set of crystals in stunning colours that even shines in the dark. Children learn to learn the beauty and complexity of the chemical process. With their own eyes, children can watch for several days how this beautiful crystal grows. It reaches a height of about 4 cm and a width of 5 cm. Size, shape, and colour, however, depend on the conditions in which the experiment will take place. The results of your own work will surely make the kids happy and the crystal will decorate your home. Experimental set is suitable for children from the age of 14, but with the help of parents, the crystal can grow even younger children.