At Toroline, we don’t just make tennis strings — we obsess over them. Every string we develop is engineered with purpose, tested with precision, and refined through direct feedback from pro players, stringers, and everyday competitors.

Proven by Data

Toroline strings don’t just feel great — they test great. In independent lab tests conducted by Tennis Warehouse, our best-seller O-TORO tested 104% higher in spin potential and 29% lower in stiffness (more comfort) than one of the industry’s most popular strings: Babolat RPM Blast 1.25. That means more bite, more snapback, and a more comfortable response — all backed by measurable performance.

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

More Than Just a String

Toroline isn’t just a product — it’s a service built around your game. With services like The String Bar, you can hand-select your own hybrid setup — mixing different models, shapes, gauges, and colors to match your game. Want more control or spin in the mains and extra pop in the crosses? Softer feel? Higher launch? We give you the tools (and tech) to fine-tune your setup like a pro.