Set of 3 Stackable Vertebra Chairs with Folding Tablet by Emilio Ambasz and Giancarlo Piretti (1990s)

The Vertebra Chair, designed by Emilio Ambasz and Giancarlo Piretti for Anonima Castelli in 1976, is the world’s first self-adjusting ergonomic office chair, engineered to naturally adapt to your body’s movements. Featuring an innovative vertebra-inspired system, a gentle push against the backrest causes the seat to glide backward while the backrest reclines up to 12°, ensuring optimal comfort and support throughout your workday. Celebrated as a groundbreaking milestone in ergonomic office design, the Vertebra Chair has received multiple prestigious awards including the ID Award for design excellence (1977), the Smau Industrial Design Award (1979), and the Compasso d’Oro (1981). These iconic office chairs feature a black glossy shockproof polypropylene shell, green fabric upholstery, a tubular steel seat-back joint with nitrovinyl protective bellows, and a sturdy steel frame finished with heat-cured resin. Practical and versatile, Vertebra chairs are stackable and available with armrests and an integrated writing tablet for both right- and left-handed users. Perfect for conference rooms, training sessions, meeting spaces, and professional settings, the Vertebra Chair is the ideal solution for anyone seeking Italian designer office furniture that prioritizes ergonomics, functionality, and timeless style.