Cut from tough Ultra-Suede material, these make it so easy to tye realistic looking hellgrammites. They come in White only, so color them black, brown, or as you wish with waterproof markers. Tye them in with the back half hanging behind the hook (when wet, it takes on its own action). Lay down a base of coarse dubbing on the hook shank and secure the front half of the Hellgrammite 'form' with a wire rib. Quick, easy and realistic.