A rubber jig is easily completed just by setting it on the jig head. This is the basic rig of "Old Coike". Invite with the action of hair and eat with a ball. The strength of the "old Coike" is that it produces amazing bites and does not lose the concentration of the angler even in tough situations. It can also be used for wackies and down shots. There are no rules for rigs. Expand the possibilities of "Old Coike" by Angler himself.