AFS-TEX Active Balance Disc significantly reduces the negative effects of sedentary working. Stimulates gentle and controlled movement to strengthen the body's core while sitting. Use while seated enhancing the inward curve of the lower back and encouraging the user to sit more upright. Improved sitting posture reduces strain on the body’s joints and ligaments. “Active” sitting using an AFS-TEX balance disc can also help improve focus and concentration. Also ideal for use on long car journeys or flights. Weight capacity of 440 lbs. Height: 3"; Diameter: 13"; Color(s): Midnight Black; Material(s): Antimicrobial Vinyl.