DescriptionChinese health balls are known to improve joints,blood circulation,sleep patterns and memory. It is a kind of portable health care device. It is not as easy as it might seem,yet wonderful stress relief after busy day. It can be part of your meditational therapy.Despite their light weight, they provide excellent exercise,partly because the light weight means that technique is far more important than with heavier balls.Features-Color: Red-Material: Rosewood-Size: About 5x5x5cm-This product is known to improve joints,blood circulation,sleep patterns and memory.-It is not as easy as it might seem,yet wonderful stress relief after busy day.-It is a kind of portable health care device.-It can be part of your meditational therapy.-They provide excellent exercise, partly because the light weight means that technique is far more important than with heavier balls.