Extreme squiggly action Soft and stretchy Highly effective worm imitation Bright colors Hareline Dubbin was founded in 1981 in Monroe Oregon. It has grown from the kitchen stove top with 12 colors of Dubbing to a 45,000 square foot facility with thousands of fly tying products ready to deliver. Hareline Caster’s Squirmito is the original squiggly worm material with extreme movement.