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 keep track of the number of rows you've knitted. 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).