Fish love eating blowflies. They are found throughout the world. These have iridescent, sparkly dubbed bodies, with a white sight post to help you see them and get inhaled.
They are tied on the best Japanese Tiemco strong fly hooks.
Remember, Having more than one good fly and the right size is always good. So, the more significant the pack, the better; that way, you will have a few staple flies doubled and trebled up in the pack selection.
As we know, there's nothing worse than losing the only fly you have that works.