Looking for a great gift This fun hands on STEM kit is perfect for curious minds Did you know that sunlight is a form of energy Build your Green Science Rover Robot to find out more Assemble your robot then twist the solar panel towards the sun. Watch as he starts to roll along powered by green energy. He has good solid wheels and makes the perfect bot for young kids with short attention spans Your kit includes all the robot parts solar panel and instructions you need to complete assembly. No sun Use a regular battery to keep your rover roaming happily. Your Green Science Rover Robot requires a small Philip's Head screwdriver for assembly and 1 AAA battery. A fun and educational science kit recommended for ages 5 and up. Approx 13cm wide once assembled.