SKC Sewing needles are solely for portable machine and come in various sizes that is #9, 11, 13, 14, 16 and 18.
#9 - stretchable blouse or very fine material
#11 - thin material such as chiffon or organza
#13 - normal cotton material
#14 - a bit thicker type of cotton material such as linen cotton
#16 - thick material such as curtain
#18 - jeans material or thicker material
Each packet have 5 pcs of the same size of needles. The length of each needle is approximately 40mm.