Thin Blue Line American Flag Golf Balls 3 Pk. This 3 pack of American Flag golf balls by Thin Blue Line is the perfect item to take to charity events or for your own golf games. With a message and design promoting our men and women in blue the Thin Blue Line American Flag Golf Balls is a bold and striking way to show your patriotism. Thin Blue Line American Flag Golf Balls are a must-have for any golfer whether they are professional or amateur. Package Contents: Thin Blue Line American Flag Golf Balls 3 Pack Thin Blue Line TBL-AM-GB: American Flag Golf Balls 3 Pk