Shimano Exsence Shallow Assassin 99F Flash Boost, the true innovation of the artificial bait. Shimano introduces the newly developed system FLASH BOOST! Even if you stop to retrieve the lure, the newly developed flash boost mechanism continues to appeal the predatory fishes. Exsence Shallow Assassin Flash Boost is ideal for long casting through the AR-C system. This is a revolutionary system consisting of a spring and a piston. This system will allow a roll that lengthens the launch and recover their position to achieve optimal recovery of the lure. The Shallow Assassin is available in sizes 99 millimetres with an average flight distance of 59 meters.