Retractable Keyboard Shelf Universal Under Desk Keyboard Shelf for Home Office, Black Description: [Size]: This computer keyboard shelf has a total length of 550 mm, and the tray includes a slide rail with a length of 420 mm. Designed to fit most standard desks and provide plenty of space for your keyboard. [Durable Material]: The keyboard drawer under the desk is made of high-quality material that ensures durability and longevity. It is sturdy enough to hold your keyboard securely. [Functionality]: The keyboard shelf in the desk drawer is designed to provide an ergonomic typing position when using your computer. [Easy Installation]: The included guide rail allows for easy installation under your desk, turning any workspace into a powerful workstation. [Retractable Keyboard Drawer Under Desk]: Retractable keyboard shelf, easily extendable for use and back under desk when not in use. Size Chart: Overall Length: 550 mm/21,65 inch Palette with slide rail: 420 mm/16,54 inch The package includes: 1 Set the keyboard shelf under the desk