Solid Core Synthetic. Experience excellent all-around playability with Gearbox Mono Core String. This 17 gauge string offers a great blend of power and control.
- Solid Nylon 66 core, wrapped with Nylon 66 filaments and covered with a Nylon 66 sheath.
- Stiffer feel.
- Durable construction.
- 45' length will string any racquet.