The product contains six different sizes of circuit boards of circuit boards2*8CM,3*7CM,4*6CM,5*7CM,6*8CM,7*9CM.different size boards to meet your demands when designing your own Arduino kits, electronic experiments and DIY projects
4 mounting holes at the corners of the board are very convenient for installing them together.
Using high-quality and durable glass fiber FR-4, high-quality and firm.
Widely used in electronic experiments and point-to-point DIY IoT projects.
