The new Shimano Sephia Clinch Flash Boost Incorporating Shimano's market-leading Flash Boost technology, the Sephia Flash Boost Egi range features an internal panel that continuously shimmers. This patented system uses a reflective mirror suspended from micro springs, which uses light and UV rays to attract squid and cuttlefish throughout the water column. The continuous movement of the mirror inside the body is produced by kinetic energy which is very effective for these marine predators when the squid is paused, as this is the time when the squid is most likely to strike.