This is a mini Block Building Breadboard. Its advantages are definitely not inferior to previous bread board's. It can save more materials than the previous bread board and is environmental protection with its small figure. You can assemble the bread boards independently according to the needs of the circuit plate size in the experiment. The using principle is the same with previous bread board. The Block Building Breadboard measures 1.5x2cm. There are 25 tie ponits in its frontage and 2 small holes in the back. The 2 small hole are in order to make the Block Building Breadboard fixed on the Base Plate For Block Building Breadboard.