i made these wrist rest for myself, after reading about carpal tunnel syndrome.
"Many typists fail to avoid carpal tunnel syndrome
because their wrists rest below the keyboard, and they must angle their
hands upward in order to type correctly. A wrist rest below the hands
can keep the hands more appropriately positioned for typing.
Further, typists who are working on keys with a high resistance may
injure their wrists because they strike the keys too hard. Adjusting
keyboard tension makes it easier to type keys without pushing with as
much force."














