The SolarBot.14 is a unique bot that can be built and rebuilt into 14 different robots. The detailed instructions take you through each step. Your SolarBot.14 kit contains unique components and parts to build robots that operate on land water. With the included photovoltaic cell, these solar toys are completely solar-powered. No batteries required! Models are divided into two skill levels; Level One includes: Tortoise BOT, Bug BOT, Four BOT, Paddle BOT, Walker-BOT, K9BOT, and Big Wheeler BOT. Level Two contains more challenging builds: Tumbler BOAT, Car BOAT, Slinker BOAT, Surface BOAT, Monster BOAT, Crabby BOAT and Rowing BOAT. Elenco Teach products are based on STEM activities (Science, Technology, Engineering, Math) to teach and encourage kids in their development, all while having fun! All Teach Tech Green-Energy robots are powered by either water, wind, or sun, so there are no batteries required. Perfect for future engineers ages 10+. BUILD WORKING ROBOTS: Teach your kids mechanical engineering 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 harness and control the Solar Bot! Your kid engineers will have an endless amount of fun building, rebuilding, and learning about solar power - no batteries required 14 DESIGNS IN 1 KIT: This robotics kit can build 14 different robots powering all day fun! The models are divided into two building levels. Level one for beginner and Level two for advanced learners. NOT JUST ROBOTICS: With our Teach Tech Kits, the learning doesn't just 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 devel