Design studio Objects of Common Interest used chunky tubes of steel to form a collection of seating for the patio of the Athens Conservatoire.

The tubular Formation series temporarily filled the entrance and garden patio of the performing arts building in the Greek capital.

The installation coincided with this year's Art Athina – an annual international contemporary art fair, which ran from 20-24 June 2018.

Made of thick tubes of steel, powder-coated blue to contrast pale tiled flooring, the pieces come in a range of shapes for visitors to sit on in different ways.

The simple-shaped pieces each have a different form, ranging from a simple column, to a donut-shapeand an upside-down T.

Another appears to grow out of the ground in a curve that then loops back down again, while one could be the outline of an armchair design, featuring a curved back support.

"Various unique, curvy-shaped elements of powder-coated steel form an ambiguous seating arrangement in the form of scattered freestanding objects," said Objects of Common Interest in a statement.

"Each element carries its own balancing expression, yet they are all connected by creating common space through their individuality," continued the studio.

Also in the collection is a U-shaped design elevated slightly above the ground on a thick pillar, two benches – one which is straight and one which is curved – and a column with an attachment that bends to the floor.

Formation forms part of a growing trend for tubular furniture designs. New York design studio Jumbo recently created a chair and lamps from curved tubes of steel, while Eindhoven-based designer Lucas Muñoz made a bulbous chair from industrial steel ventilation pipes.

Objects of Common Interest is a design studio founded by New York- and Thessaloniki-based Eleni Petaloti and Leonidas Trampoukis, who also run architecture practice LOT. Other projects projects by the team include a series of homeware based on classical geometries and experimental furniture that pairs glass blocks with glossy colourful laminates.