With this toy, children can witness the moment of condensation in a snow mountain erupting. The unique DIY design not only enhances children's hands-on ability and creativity but also provides a scientific education experience. It allows children to learn scientific knowledge while playing. Features -Color:Assorted Color -Material:ABS -Size:4.50X4.50X3.00cm/1.77X1.77X1.18in -Enhancing children's hand-on ability and creativity through unique diy design -Learn scientific knowledge while playing with this science education toy -Its exceptional craftsmanship and intricate details ensuring its practicality and widespread appeal. -made of reliable and lightweight material., this set of snow mountain playset is easy and safe for kids to play with. -Suitable for family, school, and other occasions, it promotes parent-child interaction and teamwork. Package list: 20 x mountain models 20 x Lime sodium bicarbonate dry powder 19 x tubes