A breadboard is a widely used tool to design and test circuit. You do not need to solder wires and components to make a circuit while using a bread board. They come in various sizes, and the design can vary, but as a general rule they look something like this: If you've never seen a breadboard circuit before, you might wonder how to tell which holes do what. Solderless breadboard is convenient for the prototypes and circuit design experiment and other DIY projects. Perfect for Arduino, Raspberry Pi, and other programming boards Easy to use: the breadboard is made of ABS plastic, each row and columns has corresponding letters and numbers, reduce the mistake handling Self-adhesive back tape makes it easy to stick on a platform, like the for Arduino prototype shield With tight plug-in contacts, the components will sit well after assembly and nothing will wobble The jumper wires are easy to insert into the breadboard. 170 Tie Points Breadboard: Size: 4.5×3.5×0.8cm Material: Plastic Color: white Breadboard