A chrome-colored Rat-LTrap lure with a blue back is hands-down one of most successful bass lures of all time [source: Martin]. This lipless crankbait -- a plastic lure designed to mimic the swimming motion of a small fish when it's cranked in -- or retrieved -- by the fisherman was invented in the late 1960s and has been a go-to lure for amateurs and pros ever since [source: Williams].
The thin, flat-sided Rat-L-Trap gets its name from its internal rattle chamber. When the lure is retrieved quickly, small metal beads inside the rattle chamber create a loud chattering noise that certain bass find irresistible [source: Wirth]. The Rat-L-Trap works in many different water conditions, but is especially effective when teased across the tips of shallow cover like underwater weeds and grass [source: Merwin].
If the fish aren't striking on a loud, vibrating bass lure like the Rat-L-Trap, it's time to get out your jigs. We'll talk about those next.