I am using the chair mat on low pile carpet and the chair wheels tend to make indentations in the flexible plastic. My other chair mat that finally wore out didn’t do that.
This product effectively protects my medium pile carpet. It dents easily but springs back at night I’m sure there are stiffer and maybe more adequatr for short pile carpet but this will do for the proce.
Cheap product cheap material looks nice but .... material is not stiff you can see and feel the dents that the chair creates on the mat and the chair wouldn't swing freely I think for the money I paid I supposed to get a much better product.