In this video, Ronan and Erwan Bouroullec use wooden moulds to create a series of new limited edition versions of their diamond-shaped Ruutu vases.

The design duo originally released the Ruutu vases ? the Finnish word for diamond ? in 2014.

Unlike the previous range, the limited edition pieces for London's Galerie Kreo were made using wooden moulds ? a process that involves inflating molten glass into a wooden cast through a blowpipe.

This gives the rhombus-shaped vessels, created by Finnish manufacturer Iittala, a textured surface that Ronan likens to "rain on a window".

"Historically Iittala create limited edition pieces, and they asked us if we were interested to do something too," Ronan told Dezeen. "We thought it'd be a good idea to produce these vases in wooden moulds, and decided to make them big scale."
"When the glass contacts the wet wooden mould, it makes the surface undulate in a certain way ? it's a bit like when there's rain on the window" he continued.

Read more on Dezeen: http://www.dezeen.com/"p=980735

Subscribe to our YouTube channel for the latest architecture and design movies: http://bit.ly/1tcULvh

...