Fellowes® Professional Series Executive Keyboard Tray with Comfort-Lift™ system lets you slide mouse platform left or right over keyboard numeric pad and offers 2 custom height positions. Designed and manufactured for Fellowes® by Humanscale®. Mouse platform tilts forward or backward, adjusts up or down, and mounts on left or right side of keyboard tray. Height and tilt indicators let you customize keyboard tray settings. Warning Trak™ helps prevent mouse from sliding off platform. Lift and lock feature lets you adjust height with one hand. Single-touch lever slides from left to right to adjust tray tilt. Health-V™ memory foam supports with Microban® antimicrobial protection stay cleaner and relieve wrist pressure to help prevent carpal tunnel syndrome.