4 COOL MODELS TO MAKE: This take apart robot toy set included a user manual; easy to follow instructions with diagrams of how to make the 4 robots Fire truck Train Robot Duck Robot Skier Robot. PLAY AND LEARN: Each build your own robotic model takes from 30 minutes to approximately 2 hours to build. After gaining experience kids can take apart the initial models and try to build their own machines. This robot kit is the perfect gift for kids to have fun and improve their mind. Manufacturered by Think Gizmos. CHILD SAFE: All parts are made from non-toxic safe materials: Certified for the Consumer Product Safety Improvement Act (CPSIA) and HR4040. One of the best remote control building kits for kids. This build your own toy robot kit improves the patience and cognitive skills of any child all while they are having fun. One of the best robot kits for kids on the market. HOURS OF FUN: Kids love this 4 in 1 robot kit. Nurture your childs creativity with this awesome robotic building set for kids that includes a remote control to bring their construction to life. Superb fun 170 part build your own remote control car that gives any child a huge sense of achievement. ALL REQUIRED BATTERIES INCLUDED.