SPECS: 18.5Wx8.75"D keyboard tray includes non-skid rubber to securely hold keyboards in place when typing with a negative tilt. The 7Wx8.75"D mouse pad quickly connects to the right and left side, is adjustable in width relative to your keyboard, tilts independently of the keyboard panel, and includes an adhesive mouse pad. Both the keyboard and mouse panels are made of a premium molded material (Bakelite) for durability and strength. Keyboard Tray height is adjustable from 4.5" below your desk to desk height via a single lever. KT1 quickly mounts under your desk on a 6Wx16"D steel track that lets KT1 slide completely under your desk when not in use.