YANGHX Newest Design Ergonomic Articulating Computer Laptop Arm Support | Height Adjustable Armrest Desk Extender | User-friendly Attachable Aluminum Alloy Arm Stand (Gray) Three pivot points and two adjustable hinges can be fine-tuned for horizontal and vertical adjustments to achieve ergonomic comfort. Strong aluminium alloy material construction provides durability, flexibility and adjustability, supporting up to 10kgs (or 22lbs) Uniquely design makes your hand move freely, comfortably and effortlessly to work on your computer. Fits desk top up to 60mm thick. Keep correct posture, avoid cervical vertebrae ache, mouse hand and nearsightedness Outstanding design now makes you move freely, comfortably and effortlessly to perform your computer tasks