Stitch markers are great for keeping track of where you are in your project. We recommend locking stitch markers for any crochet project or to mark a particular row in knitting. These stitch markers include a clip to hold a note. Remind yourself where you started decreasing or which marker is the beginning of a round.
From the manufacturer:
Lock ring markers are used for marking positions of knitted stitches. Designed to hook onto the knitting stitch, the safety pin locking mechanism assures that the marker will not fall off.
With clip - Attach notes to stitches with these little markers! This package contains six plastic stitch markers and a perforated notepad. Imported.
Quick Locking Stitch Marker Set - These stitch markers can be used in both locked and unlocked position. Their undulated design prevents stretching of stitches and vibrant colors easy to identify. This package contains ten small markers, twenty medium markers and six large markers within one 3x3x.75 inch storage case. Imported.