Found the bare mat in front of the garage with a sticker that said "Read instructions before unrolling"! It was very dirty. After wiping with paper towel and two passes front and back with a steam mop it was fit to use.
I purchased an ergonomic desk chair in light blue and white and it is absolutely gorgeous. It’s also very comfortable sturdy and was easy to put together.
This Chair Mat is made of a very soft clear plastic-like material. Because of this the caster wheels of my task chair make indents into the surface of the mat making it difficult to roll the chair. The mat should actually be made of a rigid material - might just trace the mat outline onto a piece of plywood and cut it out. First world problem I know but the mat wasn't cheap.
I went to Staples to get a plastic carpet mat and sure enough they had one the right size for half the price sale. The Male Mgr found this sale for me. I am 84 yr old male who needed his help and he could tell I did. Thank you Staples and manager! phil davidson