Postfly Bug Dust brings soaked dry flies back to life! This sweet, fine pow pow also makes nymphs more lifelike by creating a realistic gas bubble effect. Bug Dust comes with a lightweight brush attached to the lid that allows you to accurately and delicately apply the powder to the wings of a drowned fly. Our fly dust will not leave a slick on still waters or spring creeks. Great for delicate dries and CDC. 1 oz.