Wapsi Glass Fly Rattles

Turn your patterns up a notch with loud Pyrex glass rattles designed for maximum attraction and durability. These tough laboratory-glass inserts feature smooth, rounded ends for easy integration and a clean profile, whether you tuck one into the belly of a zonker, mount it at the head of a Gamechanger, or conceal it in other streamer and baitfish patterns. The result: amplified vibration, crisp high-pitched sound, and added strike-triggering presence in dirty water, low light, or anytime you need more attention. Built from genuine Pyrex—because if it’s not Pyrex, it won’t last—these rattles resist cracks and temperature shock, standing up to aggressive casting, toothy hits, and long days on the water. Ideal for warmwater, saltwater, and predator flies, they install quickly with thread dams, UV resin, or epoxy, and they won’t cloud your resin work. Elevate your fly tying with reliable, high-noise glass rattles that help convert follows into eats. 10 per package.