●1. 10 pieces 8 x 12 cm double-sided prototype plates for your electronic experiments and DIY. ●2. These prototype boards use high quality material to ensure stable performance and long service life. ●3. With tinned surface for easy soldering, these circuit boards are perfect for DIY soldering and circuit boards for electronic projects ●4. Anti-aging, corrosion resistant. Standard 2.54mm hole spacing ●5. These double-sided printed circuit boards are perfect for electrical experiments, electronic factories, etc.