chair mat is made cheaply made. my chair leaves deep marks in it and I'm not over weight. The mat needs to be made with thicker or heavier material. I don't know how to upload photos that's why I'm not sending them.
Very happy with product so far. Bought the 46' by 60" mat bigger size is great protects more of the carpet. Shipped fine label/sticker peeled off fine. Can lay either portrait or landscape which you can't do if it has a lip. Let's hope it lasts a year at least!