Features 1、This universal circuit board is used for point to point DIY soldering 2、The PCB prototype is pre-drilled and cleaned 3、Great for building a prototype of an electronic circuit 4、Referencing numbers printed on both sides for easy reference of individual holes 5、The board is treated with flux for easy soldering and extended serving life Specification Features: This universal circuit board is used for point to point DIY soldering The PCB prototype is pre-drilled and cleaned Great for building a prototype of an electronic circuit. Referencing numbers printed on both sides for easy reference of individual holes. The board is treated with flux for easy soldering and extended serving life. Specifications: Hole Diameter: 1.2mm Hole pitch: 2.54mm Size: 9 x 7 cm / 3.54 x 2.76in Weight: 89g Package included: 10 x Universal Circuit Board Package List