This sturdy rest features improved health as it can reduce arm pressure and eliminate the muscle tension in the neck, arms and shoulders. Made of high-quality MFD and steel with sturdy clamps fitting onto desks, it is highly flexible so you can choose the most comfortable angle for yourself, protecting wrists. This desk arm rest extend the desktop horizontally and fully support the arms to relax the upper limbs and improve working conditions. It can hold up to 33lbs, strong and sturdy enough. It is convenient for users to fold and store when they are not needed and does not take up your space! You can fold it down when you don't need to use it, saving space. When used at work, you can place more items such as a keyboard, notebook, mouse, etc. to increase the use space. Also, it is super easy to install. Just install it directly on desks.