It is a kids' chair with a two-stage height function that even fits children under the age for kindergarten. The height of the seat can be adjusted (22 / 24.5cm)  as they grow so that they can keep the good posture. You won't get tired even if you sit for a long time, and you can maintain your concentration. From a young age, sitting on the chair can become a habit and that might help them to be motivated to learn.