Key Smart Kastel chair with armrests The Key Smart Kastel designer office chair is characterised by the modern style of the perforated polypropylene backrest, available in white or black. The seat is upholstered in various fabrics and it is also possible to have this office chair with an upholstered backrest, also with a perforated backrest. The armrests match the colour of the shell. In addition, the chair with armrests can be accessorized with various mechanisms for adjusting the seat and backrest according to body weight. Key Smart is versatile for furnishing modern offices but also study stations.Discover Kastel products on Arredaremoderno.com! KEY SMART 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 armrests are fixed and match the colour of the backrest. The seat is upholstered in: Category A Category C Category D Category P A version with padded backrest and lumbar support is also available. For more information, please contact customer service. View and choose the colour in the material sample book and enter the fabric colour code in „Product customisation“. KEY SMART KASTEL CHAIR DIMENSIONS: Key Smart is available in the following dimensions and mechanisms: gas (adjustable height) gas syncron self-adjusting/P (backrest self-adjusting according to body weight) gas syncron self-adjusting/P transla seat (backrest self-adjusting according to body weight and adjustable seat depth) DELIVERY TIMES: Estimated shipping time 4 working weeks from verification of payment received.