Humanscale Ergonomic Foot Rocker FR300

Features:* Constructed of solid hardwood platform with a steel frame, phenolic side supports, rubber pads and plastic knobs* Ball-bearing rollers encourage rocking motion* 3 height adjustment* Non-skid, inset pads* Rubber feet protect flooring* Dimensions: 16 W x 11.875 D* Height range: 3.75 to