FELLOWES MFG. CO.-FOOTREST,ROCKER,MICRBN,BK. Foot Rocker w/Microban, Plastic, 19 5/8 x 5 3/16 x 11 15/16, Black. Ergonomically designed for maximum comfort. Microban® antimicrobial protection keeps product cleaner. Rocking motion helps improve circulation while reducing leg fatigue. Flip product over to adjust height from 2 3/4" to 4" for increased comfort. Unique tread holds foot rocker in place while in use. Width: 19 5/8 in; Height: 5 5/16 in; Depth: 11 15/16 in; Diameter: N/A.