Coolrunner 2'' Marble Dark Grey Baoding Balls Chinese Health Stress Relieve Hand Exercise Hand Massage Hand Balls

They are 5cm diameter, larger than most Baoding balls which are 4cm. I have extra small hands (women glove size 6). They are a little challenging to play at first, but perfect for soothing hand exercises. Buying 2nd pairs.

amazing ...i use em while listening to music..

They don't have the same depth coloring from the pictures. And one of the balls has a rough spot. I think it's because the white material isn't covered by the resin (I don't know if it's resin but you get the point). Also I can scrape the white stuff by hand. So, I don't know how long that ball gonna stay.

Balls were not the same size. One was smaller than advertised.

These Baoting Balls are really nice, they are usually recommended for building hand strength, and Dexterity, however I find them very useful for Focus. My mind races most of the time, but while holding them the thoughts subsides and really seem to think more clearly. These are 2" in diameter and give of a soothing 'SWISHING ' tone and weigh appropriately 1 lb each, while rotating in your palm. People with smaller hands should be aware, these are pretty big, I would suggest getting the 1 1/2" option. I'm very impressed with the calming nature these have on concentration . I highly encourage those in rehabilitation for hand or finger injuries, should try these out!!! I love them!!!