They are at least throne 4m brush robot Regarding Between Pointer
KidzRobotix Brush Robot STEM Building Engineering Science Kit New Sealed 4M | eBay
Fun Mechanics Brush Robot Kit | Vimaneaa | Mom Blog
4M Brush Robot,Fun Mechanics Kit, New Sealed | eBay
KidzRobotix BRUSH ROBOT - YouTube
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