First time I’ve run across this type of knitting counter.
There are lots of ways to count rows when your knitting, like using a row counter or marking it on a piece of paper. This video appealed to me because I forget to move the row counter or write it on paper.
Do you have trouble counting rows? I’ve been knitting over 60 years and once in a while I have trouble counting rows. Hopefully the link below will help you as it did me. It has some very good diagrams and tips for the seasoned or beginner knitter.