May I ask what kind of materials are these? Where can I usually buy them? I am a fly fisherman and I need these materials for tying hair hooks! What are these materials?

I've always tied my own, just use a soft chicken feather at the tip, don't make it a sliver, use a piece on each side and a piece on the end, then use a woolen thread to tie it tightly with a drop of 502 and a little bit of trimming to get it done! It's like a floating wasp or something! Personally, I recommend going to the market and finding some white or yellow chicken feathers for the best results, and red, yellow, and green wool for the best results! If you are fishing for horse mouthed fish, you should use 5 hooks on a skewer, and use a small piece of iron to make a small eye at the top of the pendant (with a connecting ring), and then wrap it in foam and wrap it tightly around a fine copper wire so that it can float in the water without sinking (horse mouthed fish generally move in the upper layers of the water, but also solves the problem of hanging on to the bottom). When fishing, look for 20-1 meters of running water! I used this method for 4 hours and caught more than 120 tails of mackerel! It's not uncommon to catch two or three fish in a string! You might want to give it a try! This way, you won't be wasting your money!