Holy Mackerel! Is 100% unrefined pure fish oil which has been especially blended for angling. It is perfect for adding extra scent to your baits and you can either allow the bait to soak in it or you can inject it directly into the bait. It is suitable for both saltwater and freshwater fishing and helps attract a wide range of species to your bait. It is also perfect for adding to rubby dubby and groundbait to help attract anything from mullet to sharks into the area. It is bottled in Ireland and made from fish sourced in the North Atlantic. Sold in large 1 litre bottles with a secure screw lid