YTEX Strings - Can't go wrong with YTEX! I recently received my 2 reels of Quadro Twist black that I ordered and I absolutely LOVE IT!!! I previously was using Square X
Ytex Octo-Twist String Review – The Green Spin Monster - https://opencourtsports.com
Amazon.com : YTEX Quadro Twist Black Tennis Racquet String Set (16 Gauge, 1.26mm) : Sports & Outdoors
YTEX Strings: Setting Your Game for Success | Long Island Tennis Magazine
Ytexsg for Coaches,Players & Stringers | Singapore Singapore
Octo-Twist Green 16 String | YTEX Tennis Strings Canada