Office Chair Bases Aluminium or Polypropylene AFRDI/BIFMA Approved Please contact us if your have other requirements FL7414 700 mm Span90 mm High50 mm Morse 3 Tapered CoreAlloy with Polished Finish$66.00 (incl GST) FL7413 660 span100 mm High50 mm Morse 3 Tapered Core$49.50 (incl GST)