Kids Posture Chair with Desk - Let your young student experience the benefits of good posture and ergonomics early with a kneeling chair that properly aligns the spine and a desktop for home study. Recommended for middle school-age kids with a minimum height of 55-56 inches and a maximum weight of 110 lbs. Height Adjustable - This sturdy chair gives the posture benefits of standing and the relief of sitting all in one! Keeping the back in an upright position, distributes weight evenly throughout the buttocks and legs, relieving pressure on the spine. Adjust the desktop height from 26.5 to 37 and the seat height from 18 to 24 to find the ideal settings.