Axle String Replacement string 10 strings per pack. When playing with the Axle Yo-Yo, the string will inevitably wear out, making tricks less sharp. With 10 strings in a pack, you can replace them regularly and maintain your yo-yo. This product retails for around 2000 yen. Hyper Yo-Yo Axle Axle String - White Edition - Saga Brand: BANDAI