Industrial designer Ron Arad has created a set of vases that slot inside one another, just like a nest of tables, for glass brand Nude.

Concentrics is a set of four vases designed by Tel Aviv-born, London-based Arad for the contemporary Turkish brand.

They were unveiled during Milan design week in the opulent surrounds of baroque Milanese property Palazzo Litta.

Arad previously collaborated with Nude on a series of glass decanters and stacking glasses.

For this project, he designed vessels that are blown in flowing, fluid shapes of decreasing circumference and increasing height. This ensures they can nest inside one other.

The four vases, designed and developed over a period of seven months, are made from crystal-clear glass using a technique called çeşm-i bülbül, meaning "eye of the nightingale" in Turkish. The process involves wrapping coloured glass rods around molten glass to create a swirling, diagonal stripe effect.

The glass is then blown into steel moulds by highly skilled glass makers, who ensure that the coloured stripes on each clear glass vase are placed at opposing angles, so that when nested together in a stack, a moiré effect is created.

Designed to be as beautiful when empty as when in use, the vases can be stacked and rotated to create different patterns and shapes.

"The nice thing about this traditional Turkish technique is that you can create this moiré effect when you layer the glass together," Arad told Dezeen.

"I thought it would be good to do a series of stacking bowls that you can use in different ways  – so you could have four bowls doing different things, with apples in the base and flowers in the top for example," he continued. "They can work together or they can work on their own."

Alongside Concentrics, Nude's Milan show also included the Ecrin and Beret containers by German designer Sebastian Herkner, which were first seen at Paris’s Maison & Objet in January.

Inspired by the round stones of the Earth Pyramids of Ritten, the Ecrin series of containers feature thick glass bases topped with smooth, brightly coloured lids.

Meanwhile Herkner's new Beret collection, which comprises colourful and sleek brass-lidded vessels, was inspired by the round, flat-crowned French hat of the same name.

American designer Brad Ascalon's Hepburn collection was also on show. First seen at Paris's Maison & Objet in January, the glassware collection is designed to inspire mixologists.

Including a highball and lowball glasses, coupes, a pitcher with stirrer, and a shaker, the Hepburn series features understated metallic attachments and accessories.

Similarly, the previously launched Big Top collection by London-based Youmeus for Nude has been designed to enhance the experience of preparing and serving drinks.

Inspired by circus jugglers, the glass and gold-plated stainless steel collection mimics the movement and shapes of performers. The serving set consists of matching glassware, ice cube bowl, tongs, straws and cocktail sticks.

Istanbul-based Nude was founded in 2014 as a subsidiary of Sisecam Group, an industrial global glassware company. Nude has previously worked with Formafantasma to create glassware with swathes of coloured pigment, and with Slovakian  designer Tomas Kral, who designed a series of glassware that resembles parrots.

Other glassware launches at this year's Milan design week included a range of painterly glass objects designed by Ronan and Erwan Bouroullec for Wonderglass.