Instructions are inside the rolled mat. You are instructed not to unroll it for 4 hours to prevent cracking.  Might be better to put the instructions on the outside of the roll on on the box.  Anyway, this mat is better than I thought it would be. Nice size, great for my floor and has a nice textured finish. I have not put my chair on it yet. Still waiting for it to completely flatten. You are instructed to put heavy items like books on the edges if rolling. You can see it was almost completely flat when I unrolled it. Probably because I just happened to leave it rolled overnight.  I can finally use my desk chair.