Linkx is Japan Technology's first responsive string trick yo-yo made with a dual rim, polycarbonate body. The body profile is nearly identical to their $100 aluminum Origin model. Came stock with a half spec ball bearing axle for responsive play. The half spec bearing lets you use it like a traditional, original play yo-yo. You can, however, replace the half spec bearing with your own full spec bearing without the need to use a longer axle. The full spec bearing increases the string gap and lets you play it dead (unresponsive). To my knowledge, this is the first plastic yo-yo with dual rims. The strategy behind the use of dual rims is to create a better balanced yo-yo to produce longer spin times.