Patu 2 Packs (1 Pair)  Rotating Desk Extension Elbow Pad Armrest - Aluminum Alloy Arm Stand Wrist Rest, Ergonomically Designed for Professional Computer Monitor Working, Lift Adjustable, Sliver Easy to use - Portable and installed simply. Unscrew to attach to desks, adjustable to desks up to 2.2 inches thick. High quality - Durable aluminum alloy brackets stretchable to 12 inches at maximum extension, strong plastic pad with soft surface cushion upon, supporting up to 24 lbs and relieving 90% of the weight undertaken by your elbows. Ergonomically Designed - One of the brackets is 180 degree rotatable for horizontal adjustments, the other bracket and the elbow pad are 360 degree rotatable. Moved freely with both right hand and left hand, offering an enough wide range of motion to adjust for any sitting posture. Health Care - Alleviate strain and pain of eyes, shoulders, wrists, and neck areas caused by long-term use of computer and long hours staring at the screen, helping prevent carpal tunnel syndrome from developing. Particularly developed for heavy computer users, such as IT professionals, designers, office employees and etc.