These plastic row counter com in two sizes. The small counter (red) fit US 0 to US 8 and the large (blue) fit US 4 to US 10.5. rubber point protectors come in two sizes. The Small size fits US 0 to US 7. The Large size fits US 8 to US 17. They are cone shaped, easy to spot and will stay on even in a knitting bag. These plastic row counters assist you in keeping track of row, stitch and pattern counts.