Calico Designs 51235.0 Ridge Mobile Desk with Sit to Stand Up Pneumatic Cart, Silver/Maple Overall Dimensions: 30" W x 22.5" D x 41.25" H, Maple Finish Top: 28" W x 19" D Heavy Duty Silver Powder Coated Frame, Pneumatic Height Adjustment: 29"  41.25" Easy Touch Lever Raises and Lowers Top, Slot for Tablet: 10" W x 5/8" D, Four Black and Chrome Finish Casters, Two Locking For Use While Sitting or Standing