Ergoguys Arm-stand Computer Armrest (eg-ergoarm) Each of the Arm-Stand can support up to 11kgs(or 24lbs) of weight effectively relieving 90% of the weight undertaken by your wrists. With its unique design, you can now move freely, comfortably and effortlessly to perform your computer tasks. Three pivot points and 2 adjustable hinges can be fine-tuned for ergonomic comfort 18"L at maximum extension Fits desks 3/8" - 1 7/8" thick