Gaiam Balance Ball Chair, Gray

Designed to provide all-day ergonomic support, this balance ball chair gives you a simple way to increase your core strength simply by sitting. Active sitting also helps to improve your posture and spinal alignment to promote increased general health. Overall Dimensions: 31inH x 22inW x 22inD. Weight capacity tested to support 300 lb. Tough PVC material resists bursting for lasting use. Ball shape promotes active sitting. All-day ergonomic design keeps your spine properly aligned while promoting increased core strength and improved posture. Wheels allow you to glide from place to place. Assembly required.