The Imakatsu Java Gill 90 Swimbait high buoyancy resin inner core of Javagill can be detached from the hole of the forehead part. By taking the core, it becomes a hollow structure and the body becomes easy to collapse. Field with small bass size, it is a useful tune when you want to dramatically improve hooking performance with tough conditions. It is particularly effective when used in Texas Rig or Swimming. However, in the down-shot or bottom riding with other rigs, complete vertical attitude can not be maintained when water enters.