Business Source Rocking Footrest, 17-3/4 by 13-7/8 by 3-Inch, Black Rocking footrest is ergonomically designed to reduce muscle strain and fatigue Curved leg undercarriage encourages a rocking motion Rubber padded feet keep footrest in place Footrest is made of sturdy, high-impact plastic Rocking footrest is ergonomically designed to reduce muscle strain and fatigue Curved leg undercarriage encourages a rocking motion Rubber padded feet keep footrest in place Footrest is made of sturdy, high-impact plastic Rubber padded feet keep footrest in place Footrest is made of sturdy, high-impact plastic