Two-Way Copper Plug Key Switch with 4mm Terminals Material_Brass 3g nickel-plated steel balls on

3g nickel-plated steel balls on a red wood base

this cow digestive system model reveals ruminant anatomy

3 glass features 10mL capacity with spout for small-volume chemistry and laboratory applications

The function of each rotary control is dynamically set by the system's software according to the specific needs of each lesson

this 125mL translucent polyethylene wash bottle features a flexible delivery tube for targeted solvent application

Two-Way Copper Plug Key Switch with 4mm Terminals Material_Brass 3g nickel-plated steel balls onTwo position copper plug key switch with 4mm terminals and two removable plugs, letting students route current down either branch of a circuit by choosing which slot the plug occupies.