Set of two. Used for about two years! There are some stains, wrinkles, and wear and tear, but there are no severe damages like holes. I only used the white side, so the gray side is clean. However, as shown in the last photo, I've attached non-slip pads in a few places. For those who don't mind. You can remove them, but adhesive residue may remain. I will roll it up and ship it in simple packaging with packing tape! Little Bot Baby Baby Play Mat (Zen Lines + Triangles, Large), 200x140x1.5cm, Soft Foam Mat for Babies,