I've bought there aa roughly 3 weeks, frankly, it's top is nothing to say, at the beginning I had to order another one with 80 balls, 1.7kg, while I weigh in the 59 -60kg, and ca give me blue HORRIBLE it was atrocious on the first day, but this is the foam so it gives no blue. If you want good results, you have to reduce meal portions you eat and do not eat a lot at night, do not eat after 20 hours if possible