I have carefully sorted and checked these shells before packaging. Each packet contains 50 shells. I always add a couple of extras to make up for any flawed ones that I have overlooked.
This group of shells are available in natural white or wheat. (The white show up in the photo with a tinge of blue, but they are really just a natural white color.)
They measure about 1/4" in length. But they are so delicate that you will want them for your finest work.