Series Parallel Circuit Kit for Physics Teaching DIY STEM Science Projects with Educational Manual-OKYN-G5716
Durable Plastic Battery Holder for 2 Size D Ideal for Flashlights Radios and Emergency Kits-OKYN-G5707
130 Motor Gear Car Chassis with 22 Accessory Package for DIY Science Projects and Robot Kits-OKYN-G6808-1
130 Motor Gear Car Chassis Kit 100 pcs Accessory Package for DIY Science Experiments and DIY Projects-OKYN-G6808-2
High Torque 130 Motor and Gearbox Car Chassis Kit for STEM Education and DIY Science Projects-OKYN-G6808-3
LCR-T4 Transistor Tester DIY Kit Automatic Component Identifier for Resistor Capacitor Inductor ESR and Transistors-OKYN-G6208
DIY 130 Motor Gear Car Chassis Kit 18 in 1 Science Experiment Project for School STEM Education-OKYN-G6808
Plastic 4-Digit Electronic Clock DIY Soldering Kit for Electronics Learning and STEM Education-OKYN-G6218
