This volcano eruption kit adopts quality materials, toxic free, safe to play with. Make your own volcano and watch it erupt! Your child will explore the principle of volcano eruption. This chemical experiment helps child learn about pressure, eruption, reactions, density and much more. Easy to use ingredients and tools with step-by-step instructions(as picture shows). Exercises child\'s hands-on ability and develops their concentration and thinking ability. Specification: Condition: 100% Brand New Material: ABS Color: Shown as Picture Suitable Age: above 10 Years Old Package Size: 16.7*21.8*4.5cm Weight: approx. 250g/8.82oz