I purchased a custom cut heavy duty cutting mat, with grid mat, for my sewing table. Shipping time was great, received within a few days. The cutting mat itself is really good, I’ve only used it a couple of times so far. My only complaint is with the grid mat. I was concerned with the 4mm thick cutting mat the guidelines would not be visible so I contacted Rhino on live chat before ordering and was reassured that you could definitely see the lines. This really isn’t correct. You can just about see them but they are in no way clear enough to be used as a cutting guide, had I known visibility would be so poor I would not have bothered buying the grid mat.