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Signum Pro's Topspin SF features the same "SuperFlex" technology that makes the Ultra Power SF a powerful and lively string. This lively and textured synthetic gut plays soft and does equally well as a full set or as a hybrid with any Signum co-poly.

Construction: Solid core string featuring "SuperFlex" technology for added power and comfort. The texture also allows for added bite and control.

Advantage: This string really shines in hybrid with co-poly strings. It makes for a durable and playable cross string. The string itself is 16ga, but when measured the textured crosses cause it to have a reading in size much thinker than it actually plays.

Gauges: 15L (1.35mm)

Length: 660'

Color: White

Why we carry this string: It's our favorite and lowest cost textured string. Fits the need of our customers who prefer "spin" strings installed in their racquets.