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Racketpedia is the only service that offers you an objective classification of tennis strings based exclusively on instrumental data.
String Project Sirius is a monofilament with round shape and composition based on copolyester.
Spin
Control
General info
Typology
Monofilament
Shape
Round
Composition
Copolyester
Available colors
Cyan
Available gauges
125, 130
Spin
Control