This is one of the defining performance yo-yos out there. This signature yo-yo of World Yo-Yo Champion Jonnie DelValle is an undersized yo-yo made out of metal and plastic. The metal rims move a huge percentage of the weight to the outside edge of the yo-yo giving this yo-yo amazing sleep times, while making the hub out of lightweight but strong plastic. It also uses O-rings not a starburst as a responses system for a consistent and smooth return. This yo-yo can be shimmed for a large gap and is twist adjustable.