Kappa Kastel Chair The Kappa Kastel designer office chair is characterised by the modern style of the backrest, available in white or black or fully upholstered. The lumbar support provides the best back comfort and helps maintain the right posture when sitting in front of the screen. An ergonomic office chair that can be customised by choosing various fabrics and colours for the upholstery and various combinations for the 5-spoke base on castors. Kappa is also available with armrests.Discover Kastel products on Arredaremoderno.com! KAPPA KASTEL CHAIR STRUCTURE: The wheeled base is made of nylon and metal in the finishes: APS black nylon APW white nylon APG grey nylon AL6 polished die-cast aluminium AL7 polished die-cast aluminium AL9 painted die-cast aluminium ANN black painted die-cast aluminium AL3 die-cast polished aluminium AL5 polished die-cast aluminium AWW white painted die-cast aluminium AL4 polished die-cast aluminium w/pins APP black nylon w/dynamic feet The backrest is made of polypropylene in the following finishes: black white The seat is upholstered in: Category A Category C Category D Category P A version with lumbar support is also available. View and choose the colour in the material sample book and enter the fabric colour code in „Product customisation“. The two-colour version is made within the same category and fabric type. For more information, please contact customer service. KAPPA KASTEL CHAIR DIMENSIONS: Key Smart is available in the following dimensions and mechanisms: gas self-adjusting syncron gas ( adjusted to body weight) DELIVERY TIMES: Estimated shipping time 4 working weeks from verification of payment received.