These stitch markers are very convenient for counting rows when knitting with knitting needles ☺︎ They have number beads from 1 to 0, so when you reach the end of a row, you pass your knitting needle through the ring next to the number. For the tens digit of the row number, attach a motif marker, and for the ones digit, hook it onto the knitting needle. This makes it easy to see the number of rows you've knitted. It's a very convenient item. It's lightweight, so it won't be a burden. The number 9 is a different color, so you can easily distinguish between 6 and 9, allowing you to knit smoothly and clearly. For the tens digit of the row number, attach a cat marker, and for the ones digit, hook it onto the knitting needle. This makes it easy to see the number of rows you're knitting. This set comes with 5 markers. The last photo shows an example of how to use them, and they can be used with needles from fine sizes up to approximately size 12 (Japanese size).