The Flybox Eggstasy is a synthetic fly tying material made from a core material called NX-Gen Fiber. When wet, the micro thin fibers take on a lifelike look and their color becomes more vibrant. The Flybox Eggstasy offers benefits that standard egg-yarn does not have; it will tie like a chenille, trap water like a sponge for a slush texture, and allows light to travel through. LifelikeMade from NX-Gen Fiber materialFibers are translucent to attract light Designed to trap water like a sponge Great water movement Static free when wet Qty per Pack: 1