Introducing WeissCANNON Fire Stroke! This 4-sided co-poly puts a tight grip on the ball. The feel is firm without being uncomfortable, and the low power level will enable you to ratchet up the stroke speed when going for extra pace and spin. The thin 1.20mm gauge is loaded with bite. Intermediate and advanced players who want an extremely spin-friendly string should give this co-poly a serious look. Did we mention the spin?