Sunway LTD538 Large Over-Sized Laptop Security Drawer System w/ Mouse Tray (Lock & Key Included) Includes a swivel mouse tray for separate mouse operation. Quality key-locking mechanism in an easy to reach yet out of sight location. Two keys included. Locking mechanism mounts on either the right or left side in an easy to reach but out of sight location. Security screws provided for tamper-proof installation to work surface. Metal framed drawer tray exposes 19"D of drawer surface; accommodating most any size laptop.