This chair is created by heating and pressing a seat-shaped former into a ball of polypropylene rope. The rope begins to liquify as it comes into contact with the heated former and, as it cools, it sets in the shape of a seat creating a contrast in form and texture to the remaining rope. No additional material has been added to make the seat – it is all made from melted rope.
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If it unravels I guess you can melt it again.
via Yanko Design