Yellow Stone Chinese Healthy Exercise Massage Balls

I had these delivered to my work address and they arrived in perfect condition. The box was different then the one shown in the picture, instead there was a tiny metal clasp. The balls were however exactly the same as the picture and seemed to be matched perfectly in size. The rock is a very nice quality and is solid. They are also strong as one of my coworkers dropped one of the carpeted floor, but they were unaffected by the fall.I use then while sitting and standing. I would say they are better for larger hands, but I believe the more you practice, the better you get at controlling the various sizes. My hands feel stronger after playing with them for a while, you can feel the increased blood flow. I used to practice various types of martial arts, and they are great for strengthening your fingers and hands without any impact. I would definitely recommend to a friend.

Very pretty, good size and the noise they make is comforting, but they were sort of rough and unfinished feeling. Box was rickety. I wish they'd been finished, one of mine had holes in it, not sure why, but they looked drilled.

It was what I was looking for however the balls are a little too big in a little too heavy to move around as a massager