Indoor acrylic hanging bubble chairKeywords: Bubble Chair,Hanging Bubble Chair,Acrlic Bubble ChairUsing a thick cast acrylic, reinforced by a single-piece galvanized steel ring, our Bubble Chair reproduction is built to last and designed to inspire. With respect to the most discriminating, mid-century modern zealot or enthusiast, our single-piece ring provides a clean sleek look (accurate to the original), simply not found in cheaper âreplicasâ which use a two-part ring that is bolted together in the middle. Welded onto the single-piece chromed steel ring is an angled steel hook, which not only provides a connection-point for a chain, but also establishes the angle at which the chair itself sits in its suspended space. This seemingly trivial detail is often overlooked, and discovered only after the point of purchase of lesser-quality alternatives, which suspend at angles unsuitable for easy entry/exit, and which appear more upright (hence less accurate to the original). Your contractor is responsible for providing a 3/8 inch log bolt that can go into a beam that is in the ceiling for support.