【Material】 Material: FR-4 Glass Fiber, Copper; Layers: Single-sided.【Size】Dimension: 400x300mm/ 15.75x11.81 inch(L*W); Thickness : approx. 1.6mm.【Applications】Great for making PCB Circuit Board, Models. Widely used in product development, DIY experiments, maintenance, production, etc.【Stable】Mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate.【Note】The product may be slightly scratched or dirty during transportation, which will not affect its use.