13 Pairs aluminium circular knitting needles in the following different sizes: 2.75mm, 3.25mm, 3.5mm, 3.75mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 7.0mm, 8.0mm, 9.0mm,10.0mm and 4 plastic wire. -With many different size needles, it is essential for knitting sweaters and scarves.