These prints are made to allow people with little use of their hands or no hands at all to use a standard computer mouse and keyboard for simple gaming and tasks. The mouse holder attaches at the wrist or forearm and secures to the mouse using a rubber band attached to the hooks. The rocker and arms hover above the left and right mouse buttons and can be used by tilting the arm to one side or the other. The other band is designed to make contact with the w, a, and d keys on a standard keyboard (the most common ones used for a game), but can be used to press any other key one at a time. If you have any questions or comments at all please feel free to contact me.