Woolfiller is the invention of Heleen Klopper, a product-designer who has been fascinated for years by wool and felt and their specific characters.
In October 2009, she won the Doen | Material Prize for Woolfiller.

According to the jury, the product is ‘brilliant in its simplicity. By using the unique qualities of wool - it attaches itself automatically to a surface by means of minute scales - she developed a do-it-yourself kit that anyone can use. It's an easy and original way to repair the holes in woollen garments, rugs, curtains or other textile products. This includes people with two left-hands.’

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