These split ring stitch markers just slip onto your yarn - and slip off again when you've finished - so you can use them anywhere in the pattern. Keep track of stitch increases and decreases, the beginning of a chart or the join of a round; no more getting lost in your knitting! 30 stitch-markers in a pack. Set of KnitPro Mio plastic split ring stitch markers. Such markers are used both for knitting and crochet. They can mark important places in knitting or be used as progress keepers. Removable anytime, you can use thoses markers to count stitches or to highlight increases and decreases.