Amazon.com: Thames & Kosmos | Robotics Smart Machines | Robotics for Kids 8 and up | STEM Kit builds 8 Robots | Full Color Manual to help with assembly | Requires tablet
Amazon.com: Thames & Kosmos Remote-Control Machines: Construction Vehicles | Science & Engineering Experiment Stem Kit | Build 8 Real Working Models | Parents' Choice Silver Award Winner |Astra Best Toys for Kids :
Amazon.com: Thames & Kosmos Simple Machines Science Experiment & Model Building Kit, Introduction to Mechanical Physics, Build 26 Models to Investigate The 6 Classic Simple Machines : Everything Else
Amazon.com: Thames & Kosmos Orbiting Solar System STEM Kit | Build a Rotating Solar System Model | Planets Revolve Using a Windup Motor | Explore Gear Ratios | Science Fairs | Difficulty