A wrist rest designed for use with TKL keyboards. Ergonomics is an important part of daily computer work, because on average each user spends up to 6 hours at the computer, while 89% of all users use inappropriate accessories, which can cause unpleasant pain in the wrist area ...A wrist rest designed for use with TKL keyboards. Ergonomics is an important part of daily computer work, because on average each user spends up to 6 hours at the computer, while 89% of all users use inappropriate accessories, which can cause unpleasant pain in the wrist area during frequent and long-term use.