LEIFIDE 8 Pieces D Cell Battery Holder Series or Parallel Storage D Size Battery Case Physical Science Plastic Holder Box Container, Blue

LEIFIDE 8 Pieces D Cell Battery Holder Series or Parallel Storage D Size Battery Case Physical Science Plastic Holder Box Container, Blue

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

10pcs Single Knife Switch:Used for Physics Laboratory,School Electronic Experimenting,Great for Demos Teaching Basic Principles of Electricity & How a Simple Circuit Works