Coco Knits colored ring stitch markers:
"These are the mini version of our popular ring stitch markers. They are brightly colored and easily seen when marking rounds, increases, decreases, and stitch patterns. Stitch markers accommodate up to 4.5mm needle.
Made of nylon coated steel, these markers attach to your Knitter's Keep, Magnetic Concrete Tray or any magnet so that you can easily store and retrieve them. Included are 10 each of 6 colors."