The first picture is a product picture, the other pictures are sample displays Description Chinese 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 meditation therapy. Features -Material: Chicken wing wood+black grain wood -Size: About 5.10X5.00X5.00cm/2.00X1.97X1.97inch -Size: About 5.00X5.00X5.00cm/1.97X1.97X1.97inch -Size: About 5.00X5.00X4.90cm/1.97X1.97X1.93inch -This product is known to improve joints,blood circulation,sleep patterns and memory. -You can play with them when you feel bored. They can help you kill time. -Portable size and easy to carry out.  A healthy, perfect gift for elder people. -Making the fingers, hands stretch flexible, promote hand muscle movement. -When you the handballs in the palm, they will the fingers and hands. 2 x balls