RPM Rough 17GRPM Rough is the textured version of RPM Blast, one of the most popular co polys ever made. Like the standard RPM Blast, this string is a co polymer monofilament with an octagonal shape and a special cross linked silicone coating. RPM Rough is perfect for aggressive players who like to attack the ball with long, fast strokes. Our playtesters found it a tad softer and more powerful than the original RPM Blast, resulting in a slightly more penetrating
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