Healthy-care Ball / Healthy-care Ball

Firstly, the product called Healthy-care Ball. Old people have two of them playing in the hand. It purposed to improve dexterity of fingers and brain. Secondly, this product is a health-care supply, measuring amount of human’s nutrition requirements, and give tips during the knocks.
Our body requires 7 major types of nutrients. The inspiration is from the solar system. There are seven left that can just fit the 7 types. This product needs invisible fibers, human bio-wave sensor and feedback technology. Both need small crashes to provide power for the control system, and the information will be collected and feedback on the screen to the old