KENSINGTON SOLESAVER ERGONOMIC ADJUSTABLE FOOTREST, GRAY (5 PER PACK), Easily adjusts for optimum relief of foot and back fatigue. Scratch-resistant plastic platform with a large 18" x 14" non-slip platform for enhanced stability and non-slip rubber feet. Reduces leg pressure and helps to improve circulation and posture. 30 degree tilt massage surface. Three angle tilt settings (10 20 and 30 Deg. Three height settings from a minimum or 2.5" high to a maximum of 4.5" high.