This breadboard accepts transistors, diodes, LEDS, resistors, capacitors and virtually all types of components. An invaluable tool for the most demanding prototyping and design applications. It has 64 lines with 5 connection points on both sides and it also has 2 power lines on both sides. All the connection points are labelled for easy identification. It has provisions to attach many such breadboards side by side. It has easy to stick self-adhesive tape on the back.