Sliding keyboard shelf-stable structure, specially designed for young people, to solve the shoulder and neck pain caused by working in front of the computer for a long timeEye protection: Keep a proper distance from the computer screen, slide 20cm away to protection your eyesSmooth design: with sliding rail; smooth rail allows you to easily slide in/out when using the keyboard trayproduct information:--Name: Keyboard Tray/Punch-free keyboard tray/wooden keyboard tray--Color: black, white, teak, walnut--Material: Wood+Stainless Steel Slide--Principle: push and pull--Design: Ergonomics / installation without perforation--Size: 52x25cm (21x10in), 65x25cm (26x10in), 75x25cm (30x10in)- Carrying capacity: 25kgUninstallable desktop1. Round, shaped desktop2. The edge of the desktop is less than 5cm and cannot be installed3. The edge of the desktop is inclined and cannot be installed4. Desks with drawers cannot be installed5. The desktop has raised edges and cannot be installed6. The desktop is a circular arc and cannot be installed7. The installation width is 10cm greater than the product specification8. The partition spacing is less than or equal to 15cm and cannot be installedErgonomic Desk Extender - Under Desk Keyboard Tray Shelf - Clamp-On - Pull-out Keyboard Drawer - Keyboard Platform - Mouses Pad/Shelves - Sliding Keyboard Holder - with Ball bearing Slides, Computer Arm Rest Support Bracket - Wrist Rest