I placed it on the floor and it seemed to be perfect except that it really smelled badly - a toxic smell. I placed it outside for a few days and it curled up into 5 angled object. Some of the smell is gone but it's still kinked. One is in use and the other is still unwinding.
We purchased 5 of these matts for the office area and they are ALL severely cracking within one year! I would never suggest these matts for anyone's use!