Work great for the back and bought as a cheaper version of what is highly advertised. I love it and it’s a daily routine.

Product arrived with rubber pealing off of the surface of the plastic. I only gave 2 stars rather than 1 because it's seemingly easy to glue, however I gave this as a gift and boy was my face red when I heard the water cooler gossip about how I gifted Karen a broken wheel.

Well....i was going to leave the stars blank for now, but it wouldnt let me. I have to send the product back because the black padded part on the small wheel was unglued when I opened the box. When I get the replacement, I will rate it correctly.

These worked as advertised but didn’t provide any relief from my ailments.

Great for popping back. They are sturdy and hard, the foam padding was not well glued down. But has not completely come off

Work great.

Product showed up with foam rubber popping off at the seam of the smaller wheel, just like one of the photos in the comments. The larger wheel has loose spots, not a tight fit. Also, not tje same shade blue. Aquamarine (ish) and Aqua blue (ish).