Equipped with an under-lock system. Entrance inner diameter Φ2.4mm, exit inner diameter 0.8mm. No need for a float stopper, stops with just float stop thread. The float stop thread stops at the bottom of the body, improving water entry balance. Less resistance when a bite occurs and the float sinks, not giving the fish a sense of discomfort. Although unused, it has been stored in a float case, so there may be some scratches, but it should not affect actual fishing.