Reading Rack for Treadmills, Stair Climbers, Stationary Bikes, Elliptical Trainers and Rowers 9 x 11 Perfect for holding books, magazines, newspapers, iPads and other portables. Dimensions. Height: 9 inches; Width: 11 inches; Upper Hook width: 1.5 inches; Upper Lip height: 1.25 inches; Lower Hook width: 2.5 inches; Lower Lip height: 0.75 inches; Thickness: 0.13 inches. Top and bottom lips designed to keep rack and material securely in place. Durably made in one piece, slides easily over equipment display panel. Smoothly rounded corners and polished edges for user comfort.