Unfortunately, I am very disappointed by the Westcott E-46004 00 Cutting Mat A4. From the optics, they gave me initially liked the idea that one side of the cutting mat with a scale in centimeters, the other side is printed with a scale in inches, I found good, because I have many templates in inches / inch , Even when unpacking a lot to me a very penetrating artificial smell that has not subsided even after a few days. The cutting mat is very smooth on both sides, they slipped constantly and you can not cut really well on it. Truly self-healing is not the Westcott E-46004 00 Cutting Mat A4. The sections of my roll Schneiders remain not only visible, but there are small elevations there, so you cut thin fabrics or very fine precise cuts can not do exactly. All in all I can not recommend it as the Westcott E-46004 00 Cutting Mat A4.