A 5 caster chair even when empty overnight leaves indents and then won't roll easily. Mat needs to be of a harder material. I have had one in the past and did not do this.
I picked this one for my sewing chair but evidently my carpet has a higher pile and the chair does not move easily. Most likely I will have to purchase another mat that has a more rigid plastic base to make the movement possible.
…for under my desk to give the most coverage. The chair mat is a tad bit softer than I anticipated and sunk in under the rollers of my chair however I would take this over a mat that is really stiff as that cracks readily.
Bought it for my wife to put under her chair while she works at her sowing machine. Just today she told me the edge sticks up (presumably from the weight of her sitting on her chair) and one time not realizing the edge was sticking up she caught her toe on it (ouch). Shudda paid more for the better one.
The mat does what it is designed to do. Vinyl is thick enough to protect carpet from chair rollers wear marks and tearing of carpet. Has vinyl studs on the back of the mat which hold the mat in place where you lay it. I am please with the mat and design. The only complaint I have is the store had the display of these mats rolled up with clear packing tape. After getting the mat home I had to use "Goo Gone" which is a adhesive remover to get rid of the tape residue off the mat. Which took it all off with some effort on my part. I understand why they were rolled up for easy Cash N Carry but string or twine would be better as it would leave no sticky residue on the mat.