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