Float Master Round strike indicators are small, lightweight foam indicators that ride on a short piece of tubing. You can attach one with the fly already tied on, slide it up or down the leader to change depth, and reuse it trip after trip. Features Lightweight indicator for nymph and dry-dropper rigs Attaches to the leader without retying the fly Adjusts up and down the leader to change depth Reusable; replacement tubing is sold separately Round shape Specs Sizes: 3/8 in, 1/2 in, 5/8 in Pack count: 3/8 in: 4 per pack; 1/2 in and 5/8 in: 3 per pack Colors: Chartreuse, Orange, White Shop note: We suggest the 3/8 in size for light nymphs and small dry-dropper rigs, and the 5/8 in for heavier flies or faster water. Pick a color that contrasts with the water's surface: orange or chartreuse in glare, white in shade or low light.