Bases Office Chair Bases Aluminium or Polypropylene AFRDI/BIFMA Approved Please contact us if your have other requirements FL7414 700 mm Span 90 mm High 50 mm Morse 3 Tapered Core Alloy with Polished Finish $66.00 (incl GST) FL7413 660 span 100 mm High 50 mm Morse 3 Tapered Core $49.50 (incl GST)