DIY Science Project Kit 150+ Experiments Educational Electronic Learning Kit Solar Energy, Buzzer, DIY Car Robot and More STEM Activities Exciting Gift for Boys & Girls

NEXT GEEK DIY Science Project Kit 150+ Experiments Educational Electronic Learning Kit Solar Energy, Buzzer, DIY Car Robot and More STEM Activities Exciting Gift for Boys & Girls

Electronic Spices DC Motor Mini Electric Motor Carbon Brush High Speed Torque Electric Toy Cars Engine Motor Kit, for DIY Fan Toys Cars Models- PACK OF 10

Electronicspices 55Pcs Plastic DIY Robot Gear Kit Gearbox Motor Gear Set for DIY Car Robot