Fellowes I-Spire Series Desktop Edge Keyboard Tray Lift with Tool-Free Installation, Black (9473401) Compact design attaches to desktop edges up to 1-1/2 thick without tools and fits in corner and standard workspaces Extended knee clearance keeps you comfortable while typing Easy tilt adjustment keeps your keyboard in the correct position for typing Innovative silicone wrist support provides a soft, cool place for your wrists and wipes clean with a damp cloth Modern design accents any workspace - whether at home or in the office