The mat is thin enough to allow the wood floor underneath to be easily visible. I use this at home and initially purchased a commercial quality mat which looked almost white due to the thickness and was very unattractive. This mat might not last as long as a thicker mat but I just spent a lot to renovate my office with a new floor so I was concerned about the appearance. This mat looks great works great protects the floor and was almost [$] cheaper than the thicker mat.
I have bought dozens of floor mats over the years but there was obviously something wrong with this particular model perhaps a bad batch of PVC or a poorly considered change of formula or design because this mat started breaking up after about a year. I believe that Rubbermaid owes its customers an apology and should replace these.
One used by 200+ pound person cracks beyond useability in 6-12 months; 120lb. person o.k. Rubbermaid honors guarantee but I would rather have one last 5 or 6 years and avoid the aggravation. Difficult to dispose of bad ones.