HiyaHiya Sharp Steel Interchangeable Needles are made from high quality stainless steel and feature swivel connections with flexible cables and lifeline holes. The joins are almost invisible and the finish is slick without being too slippery. This Expanded Interchangeable Set includes 13 sets of needle tips 2US/2.75mm 3US/3.25mm 4US/3.5mm 5US/3.75mm 6US/4mm 7US/4.5mm 8US/5mm 9US/5.5mm 10US/6mm 10.5US/6.5mm 11US/8mm 13US/9mm 15US/10mm 4 cables (16", 24", 32", 40") Also included are a pair of Large Tip Adapters, a pair of Small Cable Connectors, a pair of Small Bead Cable Stoppers and a set of needle grips with a tightening tool, all packaged in a beautiful brocade and cotton HiyaHiya Interchangeable Case.