2-Cell D Battery Holder with 4mm Banana Plugs Subcategory_Acids and Bases all faces polished and packaged

all faces polished and packaged in a wooden storage box

each one rotating to follow the local field whenever a magnet is placed beneath the plate or alongside it

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

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

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

2-Cell D Battery Holder with 4mm Banana Plugs Subcategory_Acids and Bases all faces polished and packagedSheet 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.