The Flashmer Hammered Mackerel Spoon is used at the end of a trolling line for mackerel and garfish. The facets on its surface create varying reflections as the lure moves. The connection features an anti-twist system. The line includes nine lengths: 35, 40, 50, 60, 70, 80, 90, 100, and 120 mm. The spoons are sold in pairs, all of the same size.