Through the years I have bought a series of these mats from Staples. Initially they work fine but usually after about 6 months of daily use they start to crack and become brittle.
Bought less than a year ago and the thin vinyl is already cracking wherever the wheels roll. I bought one of these from a competitor over five years ago and it lasted that long for the same price. Shop around!!!
It does not stay in place. I have to move it continuously. The material is to soft. The prongs are to short to hold in the carpet. Thinking of returning it.