Exsence Silent Assassin 129 is the most technologically advanced mid-sized Sea Bass lure Shimano has ever produced. Available in floating and sinking options it features FLASH BOOST, JET BOOST and SCALE BOOST with a tight rolling action when retrieved at a constant speed, or long powerful glides when jerked.$ If you want the ultimate mid-sized Sea Bass lure the Exsence Silent Assassin 129 should be at the top of your list. Available in floating (F) and sinking (S), this 129mm long Bass hunter features JET BOOST for increased casting performance up to 65m making it perfect when the fish are feeding at distance.