This mat is a perfect replacement for my old mat which had deteriorated after many years of use. The size weight and material content are basically the same as the old one and I'm delighted that it works in the same space.
The size is good. Plastic is too thin as on carpet the wheels of office chair makes 4 dents that makes it hard to roll after sitting for a while. Dents do not go away so chair tend to roll into the dents. The grips on the bottom keep the mat from moving.