Wapsi Pyrex Glass Fly Rattles create a ruckus in the water and won't break in action! Perfect for subsurface fly patterns, you simply press a rattle end into foam bodies or place it inside a tubing. You can even embed Glass Fly Rattles into epoxy; they're easy to work with and make a nice vibration and clatter in the water. These are perfect for crawfish patterns and other bass flies! Glass Fly Rattles can also be added to the larger nymphs, your streamers, crab/shrimp patterns, and more! Available in different sizes and in packages of ten. Add some attention-getting noise to your flies with Wapsi Pyrex Glass Fly Rattles!