It's OK
My only concern is that the one I received seemed used. There was a large surface area inside the center of the bottle  that seemed to have a possible wet spot, where it stuck together. There was also a waxy thumb sized white smudge  inside the month of the bottle, just pass the bottle stopper.  There were no leakage and the bottle worked fine in helping to relieve my cramps and backache.
Rating: 3 stars