1、Multiple Sizes: Knitting needles are available in different sizes and are clearly engraved on the surfaces of the knitting needle so you can easily distinguish their size. 2、Interchangeable Design: The knitting needle cables are designed to be interchangeable, the needles can be replaced for easy sewing and knitting use. 3、Application: Knitting needles set is the complete tool set to meet your various needs and can help you complete more projects, blankets, towels, hats, etc. 4、Easy Installation: Simply tighten the key with metal to keep the needle end firmly attached to the cable, the end hats include screws on the cable, allowing you to knit securely when your needles are needed anywhere. 5、PU Bag: A flexible and beautiful PU bag case that neatly stores all the included needles and accessories for easy storage. 1 x Storage Bag20 x Circular Knitting Needles4 x Button1 x Tool Sticker4 x Adapters2 x Link Rod2 x P Shaped Wrench Item Type: Interchangeable Circular Knitting Needles SetMaterial: Ebony, PU, Stainless SteelProduct Specification: 1 SetProduct Use: HouseholdScope of Application: Most ScenesCircular Needle Size: 2x(Approx. 3mm / 0.12in, 3.25mm / 0.13in, 3.5mm / 0.14in, 3.75mm / 0.15in, 4mm / 0.16in, 4.5mm / 0.18in, 5mm / 0.2in, 5.5mm / 0.22in, 6mm / 0.24in, 6.5 mm / 0.26in)Adaptor Length: Approx. 40cm / 15.75in, 60cm / 23.62in, 80cm / 31.5in, 100cm / 39.37inStorage Bag Size: Approx. 20.5 x 16.5cm / 8.1 x 6.5in