Description This is a circuit board made of glass fiber board and copper material. It has reasonable design and practical functions, and can be well used in daily experiments and DIY welding work. It is made of excellent craftsmanship, safe, durable, sensitive and practical, and can serve you well. It will be your perfect material choice. Features -Color:Green. -Material: Copper,Fiber Glass Board. -Size: About20.00X15.00X0.20cm/ 7.86X5.89X0.08inch. -With welding holes, the circuit board is convenient for your DIY projects and component welding work. -It is a practical and excellent power supply suitable for many electrical components. -Smooth and durable, good flame retardancy, safe to use, very suitable for your DIY operation. -With precise design and good working performance, it is a very good circuit board. -The multi-function experimental circuit board makes your DIY operation safer and more secure. Package list: 1 x Breadboards