2-Cell D Battery Holder with 4mm Banana Plugs Lab Supplies_Rulers & Measuring Supplies Built to grip round flasks

Built to grip round flasks and condensers during distillation or reflux

supplying steady air for linear-track suspension and other benchtop aerodynamics apparatus

demonstrating mechanical-to-electrical energy conversion as the crank lights the bulb

Color-coded regions and numbered structures on a life-size half-brain cross section support identification-key neuroanatomy exercises with mounted display

2-Cell D Battery Holder with 4mm Banana Plugs Lab Supplies_Rulers & Measuring Supplies Built to grip round flasksSheet metal D battery holder for two D cells with spring loaded terminals and 4 mm banana plug outputs, providing a battery powered DC alternative for circuit and experimental apparatus setups.