Covered in Shimano's UV-highlighting Keimura cloth it also has six glass beads rattling around in two internal glass chambers imitate the sound of a male squid, which attracts the females, but also has the males wanting to see off the interloper! The two stage rattle is the key to all this. After landing, the jig sinks head first, and then flattens, giving off a different rattle depending on the angle. Then, when the jig is jerked it rattles again. Working it in sets of four - sharp jig, pause, sharp jig, pause - seems to talk the inkers' language best. With a controlled descent of one metre every 2.5 to three seconds depending on the water conditions, it's also possible to work deep weed beds and other structure where squid are likely to hang out with pinpoint accuracy.Ê