This basic breadboard kit contains all of the basic connecting parts to start exploring circuit design. The kit includes a variety of connecting cord sizes and two breadboards. All that is required is to provide components such as resistors, LEDs, or capacitors. Kit Contents: • Solderless Breadboard (30 columns x 5 rows x 2), 2 • Long connecting wire, 6”, 4 • Long connecting wire, 8”, 4 • Long connecting wires 6” with banana plugs, 2 • Set of 130 connecting wires (10 each of 13 sizes) in case. Sizes included are: 3 mm, 5 mm, 7 mm, 9mm, 11 mm, 13.5 mm, 15 mm, 20 mm, 25 mm, 50 mm, 75 mm, 100 mm, 125 mm.