Ok, rubber backing is thin. Pleasing design and helpful size, but could be thicker as it really acts as a mat to simply place things on or demarcate your drumming area, but not especially helpful for sound absorption or really serious gigging rigors I suspect.
Good price, and quite reasonable quality with a handy supplied bag-I'm using it for home studio, you could use an underlay or sound absorption mat with it, but that involves extra financial outlay.