Tourna Premium Poly 17g is an extremely durable polyester string coated to enhance playability.
Reader Reviews It does not indicate the diameter on the package. I measured it with a digital Vernier calliper and it says 1.20mm. Although the feel is different, tt plays comparable to other more expensive or cheap Poly I've tested: Pro Supex / Luxilon ALU power / Gosen Polyon Ice / Eagnas Poly Nova Titanium. Tension maintenance is great. Stiff when srung high and powerful when strung low. Price cannot be beat.
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