Gamma TNT2 (Squash Stringing) Squash restring using Gamma TNT2 squash string TNT 2 Squash features braided outer wraps in order to maximize control, spin and increase durability. The TNT 2 process increases power and resiliency. Color: Optic Yellow Gauge: 17 gauge (1.20mm) Material: Multifilament Composition: ISO-Elastic Fibers With Braided Textured Surface Manufactured in Japan