DESIGN: Sleek, modern design with swivel capability Combines comfort and ergonomic back support 52 cm anti-burst balance ball provides cushion; easily removes for exercising and stretching Features smooth, easy-glide caster wheels that lock Includes easy-inflation ball pump SPECS: Designed for heights 5' to 5'11" Measurements: 23"W x 31"H x 23"D Weight Capacity: 300 lbs. Height: For those 5'-5'11" tall