A small venture firm requested the design of the mouse to InnoDesign. Their request was quite simple. It was the design of the mouse which does not make load on the wrist during long term use. It was known that the wrist is not torsioned when mouse is held like by gripping the pencil.It was cut out in clay and it was made in 3D and printed out RP machine repeatedly to find the shape of new grabbing feeling. The form fact which can be applied to everybody with different hand size was traced by regulating the shape and size which were made in variety.