These are great markers and move nicely on the needle. I have one suggestion though, instead of packaging as a multi-size set, I would love to see them sold by size. I've made several large projects with over 250 stitches on small needles, I ended up at the hardware store for small washers to use to track stitches and/or pattern repeats as I could get the quantity I needed without getting ones I'd never use in that quantity. The washers worked, but certainly don't move as nicely. They can also be trouble on non-metal needles for obvious reasons.