Wilson-Stamina Reel 16G White-(026388122837) All around performance with added durability, Wilson Stamina 16 takes the feel of a synthetic gut and adds greater durability. The monofilament core provides solid control and tension maintenance... Size - (See Description) | Color - (White) Authorized Wilson Dealer. All racquets are strung and ready for the courts! SEE SELLER DETAILS FOR RETURN POLICY.