Round strings typically generate less ball grip due to their smooth geometry. To achieve elite spin performance, snapback must operate at an exceptional level — compensating for reduced ball bite and allowing the string to deliver high rotational output.
Despite its smooth geometry, Racketpedia lab testing rated A5 a perfect 100/100 for spin, making it our highest-rated round string for spin performance — establishing A5 as a new benchmark for round co-poly performance.
While A5 doesn't rely on sharp edges or aggressive shaping for ball bite, it compensates with elite snapback and low-friction response, allowing the strings to accelerate and return with intensity — generating heavy rotation through speed, elasticity, and string movement.
The string's symmetrical round construction also produces a pure and predictable launch angle, giving players the confidence to swing aggressively while maintaining consistent trajectory control and repeatable ball flight.
The result is a string that feels controlled yet lively, stable yet responsive — ideal for aggressive baseline players seeking a connected feel with pinpoint accuracy.
Color: Carbon Gray
Gauge: 16L/1.25mm
Profile: Round
1 package includes 2 half sets (6.7M length per half set) for 1 racket
Tennis Spectrum
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A5 is one of Toroline's premium co-poly constructions — engineered for players who demand precision, stability, and explosive spin from a clean round profile.
