KENSINGTON SOLEMASSAGE ERGONOMIC FOOTREST, BLACK, 1 EACH, Features five height-adjustable settings up to 6.5" high. Provides a tilt of up to 30 degrees. Scratch resistant 17" x 13" textured platform stimulates the nerve endings in the feet and is designed to invigorate and exercise ankles and improve circulation in the legs through a gentle rocking mechanism.