Breadboard

From Electronics Wiki

A breadboard is a device used for prototyping electronic circuits. Breadboards allow electronic components to be connected together without soldering so that changes may be tested quickly and easily. Typically a breadboard is a board made of molded plastic, with a grid of holes, above an array of push terminals. The terminals are connected together in varying patterns under the surface of the breadboard, so that current can pass between components based upon how they are inserted.

For wiring breadboards, use 22 AWG solid wire, tin. If wire gauge is too large, it wont fit; if too small, terminals will not make a reliable contact. Copper corrodes faster than tin. A good wire cutter and stripper are essential tools.