A world first, HiyaHiya's Interchangeable Straight Needles offer an entirely flexible knitting experience. HiyaHiya's Interchangeable Straight Needles are compatible with interchangeable cables, interchangeable tips and interchangeable accessories (including the tip adapters and cable connectors) to create a wide range of knitting options. Each pair of needles contains one 5cm and two 10cm sections per needle, these seamlessly screw together, making the length adjustable. It also means that they are collapsible and therefore ideal for travelling.