What collection did Ai Weiwei release with Avant Arte?

Ai Weiwei announced a collaboration with Avant Arte to launch 'Coloured Vase, 2025,' featuring five time-limited editions available exclusively on avantarte.com for seven days starting August 28, 2025. The sculptures, measuring 21 cm in height and 23 cm in both length and width, were created using a metal spinning technique and finished with a tinted lacquer, each engraved with the artist's signature and edition number.