Knitting Needle Ring Set is made of carbonized bamboo and aluminum, it will never get rusty; 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; Carefully polished knitting needle set, specially light and smooth, flexible and convenient; These is a PU bag in this set, it can storage and protect your needles safely.