O-TORO is TOROLINE’s best-selling and most spin-friendly string—co-developed with former Top 25 ATP pro Steve Johnson to give players explosive performance without sacrificing comfort.

Lab-tested by Racketpedia with a perfect 100/100 spin rating, O-TORO also ranks as more comfortable than many of the top-selling co-polys on the market.

In head-to-head lab testing by Tennis Warehouse, O-TORO outperformed Babolat RPM Blast with:

• +104% higher spin potential

• –29% lower stiffness (for more comfort)

What makes O-TORO special? It delivers elite-level spin while maintaining a controlled, comfortable response—ideal for big hitters looking to unlock next-level spin and put away power with confidence.

Look no further for the best value co-poly string on the market!

Available in 2 colors and in a hexagonal profile

• Neon Green (1.23MM/17)

• White (1.23MM/17)

1 package includes 2 half sets (6.7M length per half set) for 1 racket

Neon Orange colorway now available exclusively on Tenniswarehouse.com

Curious how your current string stacks up? Click here to compare it to O‑TORO using Tennis Warehouse’s string performance database