I don't like the round yellow head pins called Quilter's Pins. they are too thick and not very sharp. I use the glass head pins, very thin and sharp and some have yellow heads but you can tell the difference by the price. Fons and Porter has short and long glass head pins that are great. Clover pins are excellent too. Once you use a great sharp pin you won't reach for the yellow headed pins again. I do like the yellow flower head pins.