Retorfio is the largest manufacturer of yo-yo string in brazil. They have over 28 years of experience and are well-known throughout most of South America. Most recently Retorfio has been providing string for the major yo-yo competitions in Brazil. They have also been working with the Coca-Cola company and providing all the string for their summer promotions for the last five years.
During this time, Retorfio has only been selling bulk string. However, recently they have started to design a individual line for the professional players to buy online
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