Featuring a swivel base in aluminium, the AAC 121 has a slightly more formal expression than the other variants in the series. Retaining the same high backrest and generous seat that characterises the series, this design features a functional base with legs that fan out from the centre. The base is available in either polished or powder-coated aluminium, and the shell comes in a variety of upholstery options, providing a multitude of design combinations that give this series versatility in a wide range of corporate, public, and private contexts. Shell: 10 mm injection moulded polypropylene with 10% fibreglass. Full upholstered. 20-50 mm moulded polyurethane foam. 4 star swivel base in cast aluminium. Available in a large selection of standard fabrics and leathers. Available in 2 different base finishes:- Black powder coated aluminium (RAL 9005) - Polished aluminium