Toysmith 4M Mini Solar Robot 3 In 1 DYI STEM Science Project (4943) – Store – The Plant Foundry
4M Table Top Robot Science Kit - Walmart.com
4M Wacky Walking Robot - - Fat Brain Toys
Amazon.com: 4M Green Science Solar Robot Kit - Green Energy Robotics, Eco-Engineering - STEM Toys Educational Gift for Kids & Teens, Girls & Boys (Packaging May Vary), Multi : Toys & Games
Amazon.com: 4M: Doodling Robot, Build a Robot That's an Artist, Ideal for Young Science Enthusiasts, Challenge Your Child's Imagination, Requires 1 AA Battery (Not Included), For Ages 8 and up : Toys