package list 1 Set x Assembled Model Toys Features - Colour: as shown in scientific experimentation kit. - Battery: 2 x AA batteries (not included) of DIY hydroelectric power station. - Material: wood + plastic, educational toys for science experiments. - size: 15x10x9cm/5.89x3.93x3.54 inches hydroelectric plant assembly kits. - Made in, it can develop your children's observation, thinking and analysis ability, assembled toy models. - It is fun education and teenagers who like science and science projects, can well develop learning skills and practical abilities in the electric hydroelectric power plant kit. - The hydroelectric power plant assembly kit can inspire curiosity and creativity, and learn the simple principles of DIY a hydroelectric power plant. - Teaching some knowledge about hydropower correctly would be a good time to interact with your electric learning kits together. - educational that you can one and you have a lot of fun thanks to its electric learning kit. description of goods Toys This electric learning kit is fun and educational for teenagers who love science and science projects, can well develop their learning skills and practical abilities. learn simple principles