This extra-fine, nylon thread is amazingly strong for its diameter. Perfect for caenis, trico, tiny beatis and micro-caddis patterns. Box with 10 colors of thread (Mustard, Light Brown, Dark Brown, Yellow, Black, Pumpkin, Light Olive, Dark Olive, Brown Olive, Gold Olive). Thread Properties • Really thin 30|0 - diameter; • Transparent thread - means that will take the body color of the flies; • Easy to ble colored with any kind of marker of colored cement / resin lays flat; • The best thread for small flies but can be used also for medium sized flies; • Perfect for dubbing loop; • The best thread for super small flies.