20PCS/Set PCB Board Prototype Kit Blue Double Sided Universal Circuit Boards 2x8 3x7 4x6 5x7cm DIY Kit

Brand Name: Hign-concerned Chemical:None Origin:Mainland China Copper Thickness:standard Board Thickness:1.6mm Min. Hole Size:1.0mm Min. Line Spacing:standard Model Number:PCB Board Breadboard 2x8 3x7 4x6 5x7 7x9cm Base Material:standard Min. Line Width:standard Surface Finishing:standard