WHEN i SAW 1.3 " i CERTAINL DID NOT EXPECT IT TO INCLUDE THE SPIKES. Most carpet mats are rigid and do not indent when parked. This mat is for thin rug and padding. You know it!
I will use this mat a lot. It is a replacement and will be used at my computer desk and I spend several hours there every day. The mat makes it easier for me to move my chair. At 75 I am not as agile as I once was and I need all the help I can get. This mat does not seem to be quite as large or as good a quality as the first one and of course the price had more than doubled. Signs of the times.