Clackin Rap 06's are essentially a lipless crankbait. They are a bibbless lure which has an anchor point at the top of the head and in this model there is also a internal rattle for added fish attraction.  These lures were dynamite on the big golden perch cast from the bank and boat at Lake Eildon this spring.  To fish the lure, cast it out and let it swim down then give a few sharp rips with the rod before retrieving it slowly.  Try imparting some extra action with the rod tip to mix it up as you retrieve it until you find a method that brings a strike.