Gosen Polylon Comfort Tennis Strings 17g 1.24m-(TS171:SET) The Gosen Polylon Comfort Tennis Strings 17g 1.24m POLYLON COMFORT TENNIS STRINGS 17G/1.24M... Soft | Control | Power Size - (See Description) | Color - (See Description) Authorized Gosen Dealer. All racquets are strung and ready for the courts! SEE SELLER DETAILS FOR RETURN POLICY.