The mat is exactly what i wanted But the tape that was holding the mat in a circle for shipping had such a strong adhesive that I had to use a strong "goof off" chemical adhesive remover on it and it has ruined the clear plastic of the mat.
I'm sorry we bought this. Hard to move chair around doesn't stay in place bunches up in same corner (no matter what angle you "glide" in). Supposedly the cleats hold it in place (ha!). Overpriced too for an item like this.