Pre-owned Humanscale Liberty Chair Price: $400 Quantity: 3 Condition: Used Manufacturer: Humanscale Type: Ergonomics, Used Office Chairs Humanscale Liberty task chair These pre-owned Humanscale Liberty task chairs designed by Niel Diffrient are are in great condition! Call (412)311-6711 to check stock today! Pricing accurate up to August 2022.