Stitch Markers, split ring, ring or locking. Securely marks the stitches and will not slip out or snag in your work. Pack of 30 plastic split ring stitch markers. Designed to slide in and out of stitches when needed. Good for knitting and crochet.Pack of 50 plastic stitch marker rings: 10 large, 20 medium and 20 small. Designed to stay on the needle and be slipped as you work. Good for knittingPack of 30 locking stitch markers. Designed to slip into stitches and look like tiny plastic safety pins. Good for knitting and crochet.