Comfort-lift System Lets User Slide Mouse Platform Left Or Right Over Keyboard Numeric Pad & Offers 2 Custom Height Positions Mouse Platform Tilts Forward Or Backward Adjusts Up Or Down To Height Of Keyboard & Mounts On Left Or Right Side Of Keyboard Warning Trak Helps Prevent Mouse From Sliding Off Mousing Platform Soothing Memory Foam Wrist Supports With Microban Antimicrobial Protection To Help Keep Product Cleaner Nonskid Pads Prevent Undesired Keyboard Movement