Features: Breadboard is designed for electronic circuit without welding design and manufacture. As a result of a variety of electronic components can be inserted or pulled as needed, eliminating the need for welding. Saving the circuit assembly time, and components can be reused. Rows and columns have corresponding letters and numbers, reduce the mistake handling. It is very suitable for electronic circuit assembly, commissioning and training. Specifications: Breadboard Material: ABS Baseplate Material: Aluminum Breadboard Color: White Baseplate Color: Black Two terminal strips: 1260 holes Four distribution strips: 400 holes Length: Approx. 21.5cm / 8.46inch Width: Approx. 13cm / 5.11inch Weight: Approx. 390g Package Included: 1 x Breadboard (Jumper wire NOT included) 3 x Terminals 1 x Accessory . Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.