It's a 10x15 cm General Purpose Printed Circuit Zero Board. This is a  High-Quality Single-Sided Fr2 / Phenolic General Purpose PCB. The Copper Layer Is Laminated For Easy Soldering And To Prevent Corrosion. It is Widely Used For Electronic Projects.

Features 

• Size- 10x15 cm (4x6 Inches)
• This Is A High-Quality Single-Sided Fr2 / Phenolic General Purpose PCB
• It Is Used For Rapid Prototyping Design
• Copper Layer Is Laminated For Easy Soldering And To Prevent Corrosion
• Widely Used For Electronic Projects.