Science & Exploration Sets features: Installing different parts in place can improve children's hand-eye coordination, exercise thinking and promote children's teamwork. This assembly robot toys kit is an gift for kids who love assembly toy, and also like robot. Give your kids a little surprise. Features Color: As shown Material:Plastic, metal Size:8.00X7.00X7.00cm/3.14X2.75X2.75inch Battery: 2 x AA batteries (Not included) Made of high-quality material for safe and long time use Kids can exercise their hands-on ability and their imagination. Also it can reduce the time that children use mobile phones and protect children's eye Science and technology are now fun and enjoyable for even the youngest of children Guide children to fall in love with science and help children understand abstract knowledge This take apart toy will improve hand eye coordination, fine motor skills, logic and problem-solving skills.