This little “mud-bug” is called Upside Down Craw-Dad. Designed to look like a small crawfish/crayfish with its multiple brown colors. The hook rides up to allow it to sink to the bottom where it stirs up the mud, just like a real crawfish. The hackle and streamers act as weed guards and bead eyes help it appear like a bug-eyed “mud-bug”. For bluegill and carp fly fishing. Made in the USA. Hook size 8 only.