12" Connecting Lead with Alligator Clip and 4mm Plug, Black Science at Home_Chemical Science this insulated lead pairs a

this insulated lead pairs a 4mm banana plug at one end with a crocodile clip at the other for flexible patch wiring

Designed to recharge the cells used in laboratory apparatus

Square-topped wooden screw simple-machine model with a leverage block

this bottle of coarse 20-mesh iron filings is a staple for classroom magnetism and field-pattern demonstrations

Red-coated Alnico cylindrical pair at 50 x 10mm

12" Connecting Lead with Alligator Clip and 4mm Plug, Black Science at Home_Chemical Science this insulated lead pairs aPlug to clip 12 inch black lead combining a 4mm banana plug at one end with an alligator clip at the other, bridging instrument panels to bare wire components without rewiring.