VS Touch 16g 1.30mm or 15L 1.35mm, 40ft, for best performance, feel, comfort and control, manufactured with special selected beef casings since 1875 in France. For longer life and better performance brush the string bed from time to time with gut oil or baby oil.VS Touch natural gut should not be used in wet weather conditions as it will damage the string. Don't leave your tennis racket strung with VS gut in your car boot in extreme weather conditions, it will ruin the strings and weaken the racket. Limited quantity of VS Touch 1.30mm in Light Blue available for £30.00 per set. Made in France.