VOLKL V23618:SET Cyclone Tour 18G Tennis String Anthracite Volkl Cyclone Tour 18G Anthracite`s twisted co-polymer construction allows for prodigious spin production. This string rates highly on Volkl`s durability, power, and control scales... High Spin Potential | No Harsh Feel | Durability And Control Size - (See Description) | Color - (Grey) Authorized Volkl Dealer. All racquets are strung and ready for the courts! SEE SELLER DETAILS FOR RETURN POLICY.