It took several days for the Chair Mat to uncurl and lay flat. Chair Mat was flat in store - curing occurred during transit while rolled-up in my car. I recommend rolling "bottom in" such that the curl can be managed by placing the chair or other heavy object to assist with uncurling.
This chair mat that I bought in the Frazer Pa Staples is of great quality. it protects my carpet and is easy to roll my chair on. The good folks at my Staples did a amazing job by telling me that this was a great chair mat. I would buy this again without any hesitiation!
I purchased this matt 3 years ago but didn't know what kind it was to replace it. I went through records from 3 years ago to find the receipt so I could order the same one. I found it ordered it and very happy.