These are imported hair stackers from India. They are made of brass or aluminum. They are well made with polished ends. Included are small Compara Dun / X-Caddis stackers, Muddler/Stimulator stackers and a longer Stacker that could be used for medium sized streamers. I also have a tiny micro stacker for tying flies size 16 and below. These contain metals that may be hazardous in California. For left to right: Micro Stacker, Compara Dun Stacker In silver or Gold, Muddler / Stimulator Stacker, and Long Brass Stacker.