The Sonic Extender 6mm Round Axle will get you out of a pinch when you can't find or replace your specific axles. Its unique design adjusts to different lengths, allowing it to fit and secure on a wide range of skates that use a 6mm axle, such as hockey, fitness, and aggressive skates. With axle portions at each end and a more centered connection point, the Sonic Extender Axle can fit a variety of skate frames (does not work on one-piece/one-sided axle frames or Roces S204 model skates).