THIS PLATFORM ARM ALLOWS CONVENIENT STORAGE OF KEYBOARD AND MOUSE. IT FOLDS UP OR DOWN WHEN NOT IN USE. THE ARM EASILY INSTALLS ON THE GLOBAL INDUSTRIAL™ WORKBENCH UPRIGHT WITH INCLUDED BRACKET. IT IS MADE USING DURABLE STEEL. THE PULLOUT KNOB ALLOWS 3 POSITION ADJUSTMENT FOR UP FLAT OR DOWN POSITIONING. THERE IS A KEYBOARD PLATFORM THAT IS ADJUSTABLE FROM 5-1/2" TO 9". THE KEYBOARD PLATFORM ADJUSTMENT ALLOWS CLAMP THE KEYBOARD IN PLACE USING 2 HAND SCREW KNOBS. AN 18"W X 3-3/4"D PADDED WRISTREST IS INCLUDED FOR ENHANCED SUPPORT WIDTH ADJUSTABLE MOUSEPAD. THE MOUSEPAD MEASURES 8-1/2"W X 10-1/4"D. IT INCLUDES A MOUSE HOLDER FOR CONVENIENT STORAGE. THE ARM MOUNTING BRACKET MEASURES 4-3/4"W X 4-1/2"H WITH MOUNTING HOLES SPACED 2-3/4" APART. THE BRACKET FOR UPRIGHT MEASURES 5"W X 4-1/2"H WITH 1-1/4" U-CHAMP CHANNEL WIDTH. THE PRODUCT HAS A LIMITED WARRANTY OF 1 YEAR.