Sam Hecht & Kim Collin, a pair of stools, model MC7 Radice, Matiazzi, Italy.

Excerpt from the product description at matiazzi.eu:
"RADICE is a three-legged wooden stool, the result of Sam Hecht & Kim Colin second collaboration with Italian furniture producer Mattiazzi – the first being the Branca chair that re-invigorated our imagination of what is possible with wood production. Hecht & Colin decided to push Mattiazzi further into the exploration of robot-craftsmanship, but this time to challenge structure as a diagrammatic concept, too.

RADICE finds its underlying beauty and simplicity in its structure. It is the bringing together of what appears the front-half of a traditional 4-legged stool, with a single back leg – the ‘root’. It is a visual improvisation, where two things meet unexpectedly. “RADICE has tension in its form and it is a slight surprise that the third leg works as well as it does to resolve the overall structure. It could be viewed as structurally diagrammatic, yet is made comfortable visually and physically because of how its third leg supports the seat,” says Sam Hecht. The backrest is small and reassuring, allowing a coat or handbag to rest on it and the seat is open for large and small people. It is light both visually and in weight, using no screws or metal fittings, yet also passing stringent BIFMA standards to ensure it is structurally sound, stable and reliable."