GREENTECH Circuit Science Electric Fountain. Greentech provides science education kits for children of the age of 8+ (note: there is a choking hazard notice on box for children under the age of 3 years old). The kit includes various components to be able to do several experiments. The kit appears to have never been used with all parts and instruction manual included. Additional photos upon request. The kit takes 2 AA Batteries not included. Item will be shipped in safe and secure packaging.