The Breadboard makes it easy to test your circuit without the use of a soldering iron. It offers you a quick and reliable solution for creating prototypes. Electronic connections are made on the Breadboard with the help of wires, inserting them into the special holes that are spaced 0.1" (2.54mm) apart and connected horizontally to facilitate the connection of many components without wires. The holes contain small springs inside for perfect contact with the wires. The rows and columns of the Breadboard are marked with Letters and Numbers respectively so you can easily find your circuit. Components with pins where the pitch is 2.54mm (0.1") are used to fit into the Breadboard.