This desk chair applies quality PU leather upholstered fire retardant foam cushioning for the seat and back, and gold-tone chrome-plated steel for the arm and star base. Twisting and turning about is integral within the office and optimal desk use. The 360-degree swivel seat and wheels of this mid-back office chair ensure must-have mobility. And with the tilt-lock mechanism and seat height adjustment, you can customize your seat to your preference.