Crystal-looking toy set made of safe ABS plastic – Crystals contain chemical ingredients: Ammonium dihydrogen orthophosphate, Calcium sulfate dioxide, pigment. Crystal steam toy set is an educational toy to help children discover 1 new array of knowledge about chemistry. – Train dexterity, improve intelligence, understand colorful crystals. – The toy set is full of items, babies can easily feed crystals according to the available instruction sheet. – Known as an educational toy set, STEAM is a product that integrates applications of Science, Technology, Engineering, Art and Math through practical activities. Assembling and programming robot movement, models,… In addition to serving your learning needs, the toy set is also a smart and attractive entertainment item.