Zoom’s big Ol’ Monster of a worm just got bigger. Measuring in at 12-inches in length, the newZoom Magnum Ol’ Monsteris beefier around the middle, too. The new magnum offers about an inch and three eighths of circumference, compared to the original one-inch for a much bigger all-around profile. Perfect for catching that kicker fish and targeting those bigger bites, the Zoom Magnum Ol’ Monster delivers all of the action and fish attraction of the original – now in a big bass size.