Description: Useful tool: This breadboard is designed with 830 holes that allow you to add many kinds of electronic components. Good performance: This DIY prototype board has good thermal conductivity and electric conductivity and is practical. DIY: This circuit board allows you to add different components on it to achieve different functions to suit your different needs. Humanized design: With a concavity design, this breadboard won't waste any space on the board. Nice replacement: This electric circuit board is durable and is a good fit for replacing an old or damaged one. Specification: Material: Plastic+iron. Color: Show as picture. Size(LxWxH): Approx. 19x9x4.5cm/7.48x3.54x1.77 inch. Note: There might be a bit of color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes: 1 Piece Breadboard. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-WuhanGQ shop 3