Mat works just fine. Surprised and concerned about the delivery. Found it leaning on the front porch wall with out any protection or boxing. The flexibility of the item and the weather conditions could have been disastrous for the mat or adjacent porch furniture or wall surfaces. The bottom of these mats with the dozens of sharp teeth can cause damage and also made it difficult to handle to bring into the house.
It took a bit of work to unroll the chair mat since it was very stiff. Much easier with two people doing it. This was the smallest size we could purchase a bit smaller would of been perfect. Other than that it works perfectly.
My chair sank into the mat. It left deep indentations. One time i couldn't even rool out of the depression. The mat did not support my weight. I took it back and exchanged credit for other merchandise