Just the beginning... YoYoJam Prelude will be introduced at Worlds. In the tradition of quality you expect from YYJ solid plastics, the Prelude is the first solid plastic from YYJ to feature the Solid Spin axle system. The production model will come with the basics - traditional o-rings and a standard bearing - at a value price. But check out the pre-release run at Worlds set up with silicone o-rings and a special edition Worlds cap! These are the World Yo-yo contest editions, and are in limited quantities.