Ergonomic backrest shaping supports kids’ back and waist so they can sit more comfortably while reading, studying or doing homework. A breathable mesh back and seat promote air circulation, and a sponge padded cushion adds softness for longer use. The 16.5-21-in adjustable seat height uses a simple lift lever so the chair can align with most desks and growing ages. A strong 5-claw metal base with a 19.5 x 19.5 x 29.5 in overall size, smooth-rolling casters and 250-lb weight capacity keeps the chair stable and easy to move.