ITEM NAME:DIY Double Sided Copper Clad Laminate PCB Circuit Board 100x70 mm 12 Piece F2A4 DIY Double Sided Copper Clad Laminate PCB Circuit Board 100x70 mm 12 Piece F2A4 Product name: copper Clad laminate circuit board; size(approx.): 100 x 70 x 1. 5mm / 4 x 2. 8 X 0. 6 inch (L*w*t) Layers: double sided; material: FR4 glass fiber Surface finishing: copper Clad Weight: 271G 100mm x 70mm blank glass fiber FR4 double sided copper clad plate laminate universal PCB circuit board sheet for DIY. Color: Photo Color Package content: 12 x copper clad laminate pcb circuit board Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.