The Dunlop Hexy Fiber String is designed for players looking for exceptional spin in a very comfortable multifilament string. Its unique hexagonal profile offers unmatched bite on the ball, while its microfiber multifilament core offers outstanding feel and comfort. Bees and their honeycomb inspired the design. Dunlop Hexy Fiber has a unique hexagonal shape that creates the extra spin on the players shots, but the microfiber multifilament core gives more feel and comfort so there is a minimal amount of negative feeling traveling through your arm.