Graou Strings are sold in many different colours and in two thicknesses: thin and thick. Each string is individually lovingly made by hand by the maker, Mattheiu, in France. These are premium 100% polyester yo-yo strings for serious players and are said by many to be the best strings they have ever tried. Graou strings are very long-lasting and are good for slacks, hooks and suicides. They do not go fluffy and are good at holding tension.