London Design Festival 2013: these round stools by Stockholm designer Kyuhyung Cho can be stacked thanks to a ring of holes around the edge of each seat.
Kyuhyung Cho designed the Poke Stool for British brand Innermost. It features four round legs and has eight holes in the seat. When not in use, the legs can be poked through the holes of another stool.
"The twist of each stool added creates a rhythm as the stack grows higher," said Cho.
"The composition of different colours and variations to the rhythm lead us create our own structure, like a geometric sculpture," he added.
The stools are available from Innermost in black, white, natural wood, red, yellow, green and blue. They are made from laquered timber and are 44 centimetres in height.
Here's a short film from Innermost:
We've also recently published a feature about Cho's gravity-defying coat stand that has a hovering metal ring keeping four diagonal sticks from crashing to the ground.
Photographs are courtesy of Innermost.