Keadic 20 Pieces Physics Electronic Science Experiment Kit with E10 1.5V 0.3A LED Bulb/D Battery Holder/Single Pole Switch/Bulb Holder for Demos Teaching Basic Principles of Electricity

Keadic 20Pcs Physics Electronic Science Experiment Kit Includes Single Pole Single Throw Switches, Circuit Wire, D Battery Holder, DIY Practice Circuit Experiment Parallel Series Circuit for School

Sntieecr 6 Set 131 PCS DC Motors Kit, Mini Electric Motor 1.5-3V 15000RPM with 66 PCS Plastic Gears, Shaft Propeller, Bulbs, Buzzer Sounder, Science Experiment Set for Kid DIY STEM Engineering Project

Alligator Clips Electrical, 20PCS Preminum Test Leads with Crocodile Clips, 5 Colors Jumper Wires Kit with Testing Probes for Electrical Testing with Dual Ended Insulators for Circuit Connection