This is a 5 x 7 cm Universal PCB Prototype Board Single-Side High-quality universal prototyping board with standard 2.5mm (0.1 inches) spacing through holes. High-quality 5 x 7 cm FR4 material, Single-sided, HASL, CNC drilled.
High quality of base material
It has a thickness of the Solder resist layer.
copper clad made tolerant as per international Standards