Beads are a great way to get your nymphs and streamers down to the bottom, and the color you choose can totally change the way the fly fishes. Countersunk brass and tungsten beads come in an array of colors and sizes and used for standard straight and down eye hooks.  If you are looking for beads to use on jig hooks, make sure to check out the slotted tungsten beads we carry from Firehole Outdoors and Hanak.  We also carry glass beads here that can be threaded on articulation wire to create more or less space between hooks on articulated streamer patterns.