FOR Ergonomics Desk Extender Tray 11.8x 5.9 Table Mount Arm Wrist Rest Shelf 90 Foldable Elbow Arm Support Clamp on Computer Arm Rest for Desk Suitable for Office Home Use

??????????????????????????????????: Our upgraded desk arm rest is equipped with adjustable double C-clamp compatible for desks with thickness up to 4.4 inch. The outer sides of the extender tray are rounded protecting users from scratches. The black textured finish looks appealing while its anti-wear waterproof surface makes it easy to clean.??????????????????????????????: This arm rest extends from the desk fully supporting and relaxing your arm so as to improve work conditions. Repeated improvements have been adopted to find the optimum ergonomic solution greatly relieving pain in the neck shoulder arm and wrist and reducing the pressure on the elbow by up to 90%.???????? &????????????????????????????????: Pre-assembled and in most cases all that you need to do is tighten the four screws which only takes a minute before it is ready for use. The manual knob supports fast installation and disassembly realizing multi scene conversion and use. Non-hole installation ensures that the desktop is undamaged.??????????????????????????????????????????: It is 90 foldable to save space and easy to store. Sturdy structure can securely hold up to 33lbs with the size of the support board 11.8 x 5.9.??????????????????????????????: This product employs premium MDF sheet and anti-rust steel sheet with coating environmentally-friendly durable and without odor. This multi-purpose desk arm tray can serve as arm rest shelf desktop extension board computer mouse pad and equipment support etc.