Didn't think I would be using these so much but I love that you can reposition these on what you are knitting and not have to use a large safety pin (which snags) or a darning needle with waste yarn scraps to mark your place. I use them both as markers on stitches and to mark between stitches. The two colors are nice if you are doing cables throughout - I usually use the one color as the beginning of the cable section and the other color as the end - so I am not getting "knitters confusion" as to where I was or should be going (it happens).
Recently bought a package of Triangle Stitch Markers made by Clover. They come in packages of small Sizes 5-8, medium Sizes 9-10-1/2 and large no size given. They are all packages of 2 colors of triangles, 16 in the packages of small and medium, 12 in the packages of large. Come on, Jimmy. Thought you had everything!