Yonex POLYTOUR SPIN is a polyester monofilament with a pentagonal profile, developed for aggressive play in which ball rotation is a primary priority.
Its five-sided construction helps engage the ball on contact while delivering a solid, defined feel. Yonex targets players with fast, forceful swings who actively seek topspin from the baseline.
This version has a 1.20 mm gauge (17) and a length of 12 m in the official Cobalt Blue colourway. The set length is intended for individual racquet stringing.