The Human Solution: M/flex Monitor Arm Review
In this review of M/Flex, the Human Solution says the monitor arm system "allows users to swap parts to create a truly customized solution."
Palm supports (unfortunately referred to by many as “wrist rests”) should be exclusively used to rest palms between periods of typing. If you rest your wrists on these supports, particularly while typing, you increase your risk for injury.
Ergo Gear Guide