Uxcell a15091800ux0023 DIY Double Sided Copper Clad Laminate PCB Circuit Board 100x70 mm 12 Piece Product name: copper Clad laminate circuit board; size(approx.): 100 x 70 x 1. 5mm / 4"x 2. 8"X 0. 6"(L*w*t) Layers: double sided; material: FR4 glass fiber Surface finishing: copper Clad Weight: 271G Package content: 12 copper clad laminate pcb circuit board