2-Cell D Battery Holder with 4mm Banana Plugs Subcategory_Acids and Bases Ninety-five-piece molecular model set with

Ninety-five-piece molecular model set with 53 atoms and 42 links spanning organic and inorganic chemistry

Single-cell iron-clad electromagnet on one C battery with integrated hooks for lifting demonstrations

Electromagnetic pickup that converts sonometer-string vibration directly into an electrical signal

Note: this is not a medical device and is only intended for science education use

2-Cell D Battery Holder with 4mm Banana Plugs Subcategory_Acids and Bases Ninety-five-piece molecular model set withSheet 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.