The ergonomic keyboard tray does make our work/study experience as enjoyable as possible, because most of us sit in front of the computer all day.The keyboard tray saves desktop space and creates a comfortable 90-degree bend in your arms when typing, thereby reducing your symptoms caused by incorrect posture.The sliding bracket can slide in and out easily. If you are using a calculator, please pull out the keyboard bracket under the desktop smoothly for ergonomic typing. If you need extra space, just push it into the keyboard tray under the table to store the keyboard and mouse.The cushioned C-clip will not damage your existing desk.Product name: Punch-free keyboard trayColor: black/white/wood/walnutMaterial: MDF+Cold Rolled Steelquantity: 1The package includes: 1*keyboard tray (including accessories)