Alleviate discomfort and promote better posture when standing, with the Uncaged Ergonomics MAT34 Anti-Fatigue standing mat. It features a solid 5/8" high-density core that provides exceptional support for your feet, knees, hips, and back as you work. Its 34 x 20" profile offers ample space to move, and weighs under 5lb. to ensure effortless portability. | Uncaged Ergonomics Anti-Fatigue Standing Mat - Black