This upgraded high back office chair adopts a sturdy metal frame and an oversized widened and deepened seat cushion to support up to 175 kilograms, perfectly fitting tall users for stable sitting. The seat height can be freely adjusted from 50 centimeters to 60 centimeters to match different body types and desk heights. Equipped with flexible 360 degree swivel casters, the chair enables smooth and free movement for daily work. The thick padded back and seat deliver uniform body pressure relief and long sitting comfort. Practical and durable, this ergonomic office chair is suitable for home study, office workspace, conference rooms and reception areas for long term daily use.