The interchangeable circular knitting needles set is made of aluminum alloy with -plated knitting needles, and these needles feature a smooth surface, have no edges and glide easily through your yarns. Helping you with various knitting and sewing projectsThe sets come with 13 pairs of aluminum interchangeable knitting needles, including 2.75mm 3.25mm, 3.5mm, 3.75mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 7.0mm, 8.0mm, 9.Omm, and 10.0mm, and 4 pieces knitting needle cable wires with different length, of which are 32 cm (12 inch), 38 cm(15 inch), 42 cm(16.5 inch), 55 cm(21.6 inch)The package contains 13 pairs of knitting needles and 4 pieces of soft wire cables in different length, including accessories are 4 pieces end caps, 2 cable connectors, 2 metal tightening keys and 1 point gripper Simple to install: you just need to use the metal tightening key to make the needle end attached to the cable securely; The end cap including screws on the cable can keep your knitting safe when your needle is needed anywhereThe high quality circular wire cable is strong, durable and replaceable, convenient for sewing and knitting use. It is best gift for your mom, grandma, friend who is a knitting beginner, who wants to try both wood and metal knitting needles