A timeless classic of Italian design, the Plia chairs, designed in 1967 by Giancarlo Piretti for Castelli, are true icons of mid-century modern style. Produced since the late 1960s, this model still impresses with its lightness, elegance, and functionality. The design combines chrome-plated steel with a transparent acrylic glass seat and backrest, creating a unique visual effect – the chair almost disappears into the space, adding a sense of spaciousness and light to the interior. The chairs are foldable, making them not only beautiful but also practical. This pair dates from the 1970s and is in good vintage condition – with minor signs of wear typical of age, highlighting their authenticity and history. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution