These Jungle Cock subs we have been working on a couple of years now. The hard part was to find a way to lazer cut the shape so the stem would be as thin as a natural feather, and we found the way:-) They are made of one layer very strong fabric and are moving very well in the water. They vill never split in 2 We made them in 4 size, and packed them with 48 eyes in each pack. And there will be few medium in the Large, and few small in the Medium, so you get some different sizes in one pack.