YoYoFactory continues to push the boundaries of plastic yo-yos with the signature model of 2010 World Champion Jensen Kimmit. This is roughly a Protostar model with a little added weight for a better spin time. It comes stock with a YYF Large size C Center-Trac bearing and O-sized silicone pads for response. Nearly all the professional players choose metal for their arsenal, but Jensen chooses plastic. Are you YoYoFactory?