If you are a hard core yoyo player, you will find that parts wear out. Duncan offers a complete Ball Bearing YoYo parts kit with all the necessary components to keep Duncan Freehand, Ballistic, Orb, Avenger, or Bumble Bee spinning at peak performance levels.

The kit contains: 2 rubber O rings, 2 types of brass spacers (total of 4), and a precision bearing.