Sulky Of America Holoshimmer Polyester Metallic Thread - 250 Yards Purple Embroidery Thread for Sewing, Quilting & DIY Crafts - Perfect for Adding Sparkle to Clothing, Accessories and Home Decor Projects

The ribbing in the photo (own dubbing #18 hook) is opal instead of purple. I haven't tied a fly using the purple material yet, but I bought this color because I liked the opal.Its size is handy for the ribbing of smaller flies. It withstands the sharp teeth of trout, adding to the durability of the fly. Its flash adds to a pattern. The price point is good when compared with other fly tying materials.I recommend this material for tying smaller flies.