Various sizes Available :Size 3-9 ; Size 10 ; Size 5-10 ; Size 9 16 Needles per pack Specifications Straws/Milliners – JJ150 Size Length mm Diameter mm Diameter Thousandths of an Inch 1 59 1.02 0.040 3 56 0.86 0.034 4 51 0.76 0.030 5 51 0.76 0.030 6 48 0.69 0.027 7 48 0.69 0.027 8 42.5 0.61 0.024 9 42.5 0.61 0.024 10 40.5 0.53 0.021 18 62.5 1.09 0.043 15 69 1.83 0.072