Yarns to Create

at the heart of Serra d'Aire

Based in Mira de Aire, central Portugal, Rosários 4 specializes in the production and dyeing of textile yarns (knitting, crochet and embroidery). The development of innovative and value-added products and priority to natural fibres or from natural origin alongside an unquestionable quality customer service are a few of the principles that motivate Rosários 4, driving the company onto an incessant path of improvement. As a result, Rosários 4 has been certified since 2000 by the ISO 9001 Quality Standard.

The quality assurance also extends to the products, producing 100% wool yarn with the Pure New Wool quality seal. Among the many other articles that hold this guarantee, is the Arraiolos wool, one of the most emblematic references. Used for embroidering the traditional Portuguese tapestries, it has been produced by Rosários 4 for more than 20 years with a colour card of over 400 colours.

Once upon a time…

The story of the yarn factory…



The Story of the knitting ball

How many steps are necessary to turn yarn into a knitting ball?

Taking off from the raw material to the finished product, there are countless of steps, from knowing hands to machines, before a knitting ball is transformed. Hear, hear our story will begin!


Quality and Environment


Ensuring top quality service and first-rate products is a permanent concern within the company. For this reason a set of monitor environmental policies and procedures were established to guide us towards a continuous improvement.



The awareness of taking on a responsible attitude towards the environment favouring raw materials of natural origin is reflected on the policies and procedures adopted by Rosários 4.



Would you like to know where you can buy Rosários 4 knitting balls?
Contact us by filling out the form and we’ll inform you the nearest sales outlets.


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