The chair mat is great and serves my purpose. The only problem is whoever packed the item put sales stickers on the mat which are difficult to remove and have left dried glue which has now become darkened on the surface of the mat. I tried to remove the dried glue several times but to no avail.
I bought one of these in August 2022 and about 1 year ago it developed cracks as the plastic is brittle. Low spots make moving the chair casters difficult. Checked with Staples no warranty. Do not buy this item. You will be disappointed.
I have purchased quite a few of these chair mats. They do the job but I am disappointed that they have to be replaced every 2 years. They crack and begin to deteriorate after 12-18 months of use and need to be replaced every 24 months or so.
Can hardly support any weight. Chair casters get stuck in one position because the mat warps. I highly recommend a chair mat with at least 0.08" thickness to support a chair.