Large, medium, small size: each 1 piece. 
KNITTING MARKERS 
Do you often find yourself recounting the number of loops or rows? If you attach SPLIT RING MARKER every 10 to 20 rows, or at a position where you need to add or reduce the number of loops, or if you attach STITCH MARKER RING into position when you're knitting a special pattern, you can check where you are while you're knitting, without breaking your smooth knitting rhythm!