Standard solderless breadboard. It has 2 power buses, 30 columns and 10 rows - a total of 400 contact points. High-quality transparent plastic gives it a nice look and it can easily integrate into any design. It contains self-adhesive tape at the bottom, which makes it convenient to stick to your PCB or other surface. Contact points are in standard 100 mil distance distribution. Boards has interlocking parts, so you can hook as many together as you would like.