Height Adjustable Kids Desk ChairWith high quality gas lift and up-down adjustment lever, the seat height of this desk chair can be adjusted between 16 and 21. Therefore, this children study chair is ideal for 3-10 years old kids of different height. Kids can freely choose the most suitable position. Ergonomic Desk Chair for KidsY-shaped support, ergonomic backrest and armrests can well support kids back, waist and arms. And this task student chair can perfectly fit the curve of kids body, effectively reduce kids back stress and help them to develop good sitting posture. Your kids wont feel tired after sitting for a long time.