Features six textured rollers which move independently to provide a relaxing massage. Fully adjustable angle knobs tighten to stabilize platform; loosen to rock back and forth to stretch legs. Black rollers with graphite endcaps; chrome finish frame. 18-3/8w x 11-3/8d x 4-1/4h. Width: 18 3/8 in; Height: 4 1/4 in; Depth: 11 3/8 in; Material(s): N/A.