Item Type: Solderless Breadboard_x000D_Material: ABS, aluminum plate_x000D_Purpose: Experiment, test, robot_x000D_2 Terminal Strips: 1260 jacks_x000D_4 Distribution Strips: 400 jacks_x000D_Power Terminal: 3_x000D_Matching Jumper: Wire diameter 0.8mm_x000D_Voltage/Current: 300V / 3-5A 1These electronic components can be reused, environmentally friendly recycling. 2The set is very suitable for the assembly, debugging and training of electronic circuits. 3These components possesses clear colors, making it easy and convenient to use and operate. 4The breadboard kits accept wires with a diameter of 20?29AWG and is very suitable for the prototypes and circuit design experiment and other DIY projects. 5Breadboard can be assembled in fixed units, making replacement and installation convenient and simple. 1 x Breadboard 65 x Jumper Wires 3 x Binding Posts 4 x Rubber Mat The diameter of the copper core of the lead or wire inserted into the breadboard is about 0.8mm, which is slightly smaller than the diameter of the pin. The pin or lead of the component should be inserted into the square hole along the vertical direction of the breadboard, and you should be able to feel a slight , Uniform friction resistance, when the breadboard is upside down, the components should be clamped by the reed and not fall off. Breadboards should be stored in a ventilated, dry place, especially to avoid being corroded by the electrolyte leaking from the battery. To keep the breadboard clean, do not insert soldered components on the breadboard.