Ergonomic design and posture support Dual back support with flipup armrests for stable support of the back, waist, and arms. Curved backrest conforms to the body, promoting a healthy spine posture and reducing sitting fatigue. Designed to fit kid's body curves and help develop good sitting habits. Adjustable and growthfriendly Height adjustable seat from 17 to 21.7 inches via a convenient rightside handle. Rear underseat knob adjusts seat depth to fit different leg lengths. Suitable for children aged 3 to 18 years, adapting as kids grow. Durable and safe construction Main frame constructed from quality metal and plastic for reliability. Strong, durable cylinder ensures steady support and safe usage. Comfortfocused materials Thick resilience foam on both backrest and seat cushion. density foam with good rebound for comfortable seating during study or play. Ergonomic support suitable for boys and girls aged 4 to 12, applicable to study rooms, bedrooms, and offices. Practical use scenarios Homework and study sessions in a dedicated study room. Quiet reading or screen time in a child's bedroom. Online classes or remote learning in a home office setup.