Our hands define us as human beings.

Man's superior intelligence over other animals would not have been enough to advance its evolution and create modern civilizations without the use of our hands and arms. With his hands and arms, man has been able to manipulate his environment, create tools for his survival, create cultures and build civilizations.

The amazing flexibility of our hands and arms to grasp and manipulate along with touching and sensing abilities make them among the most efficient manipulating devices in nature. There are three types of grips that demonstrate the dexterity of the human hands. The precision grip of thumb and index finger allows highly coordinated function no other animals can do. The spherical grip for round objects and the power grip with fingers wrapped around the object held with added pressure from the thumb demonstrate that without the use of hands and arms we become less capable in caring for ourselves, caring for others, and in contributing to society.