- Superior quality material: ABS material frames and PP material roller, robust and durable, with strong construction ribs. - Adjustable footrest: Six different heights, adjustable according to the height of the table and chair. - Ergonomic: Textured surfaces with massage and roller to improve blood circulation. - Non-slip base: Bottom that allows rolling and tilting without slipping or moving. - Versatile: Helps correct posture, improve work efficiency, and relieve stress. - Easy to assemble: Quick installation without tools, height adjustment via knobs. - Massage surface: Equipped with small particles and large rollers for effective massage. - Warning: Do not stand or step on the footrest.