HEAD FXP Tour 16 String Reel Head FXP Tour Liquid Black 16 is one of the most innovative strings Head has produced. A core of 4 polyester filaments combines with a wrap of 8 multifilament layers making for a combination of crisp comfort: soft on the arm, yet feeling firm and controlled... Size - (See Description) | Color - (See Description) Authorized Head Dealer. All racquets are strung and ready for the courts! SEE SELLER DETAILS FOR RETURN POLICY.