•BUILD WORKING ROBOTS: Teach your kids STEM skills in a way they can't resist! Designed for kids 10+ this kit will guide your learner through the process of building real working robots - taught in a way that they'll understand! •POWERED BY THE SUN: Use the power of the sun to control 12 different robots. Have an endless amount of fun building rebuilding and learning about solar power - no batteries required. •10+ DESIGNS IN 1 KIT: 12+ different robots included that can mimic animal movements. Once you have completed all 12 model builds use your creativity and try your own constructions. •NOT JUST ROBOTICS: With TEACH TECH Kits the learning doesn't stop at robotics. Teach Tech instructions are specifically designed to develop problem solving skills analytical thinking and curiosity in young minds. •HANDS ON LEARNING FUN: Teach Tech products focus on STEM activities (Science Technology Engineering Math) to teach and encourage kids in their educational development all while having fun!Rivet Rex is a DIY robotic building kit that provides hours of play and learning. No batteries are required with Rivet Rex it converts the sun's energy into usable electricity. Start the road to STEM discovery with Rivet-Rex and engage in fun play challenging build plans troubleshooting problem solving and solar power. Detailed instructions take you through each step and bring fun to life. After you’ve completed all 12 Rivet Rex robots foster creativity with your own cust