ABOUT The Seeknit interchangeable circular knitting needle range allows you the flexibility to create customised circular knitting needles for each and every project! Combine cables of varying lengths to needle tips, as well as end stoppers, adaptors and more. Depending on the needle size, the needle tips are available with three screw sizes; M1.8, M2 and M4. Ensure that your cables share the same screw size as the desired needle size. Do you have two different screw sizes you wish to connect? Then easily combine them with the Seeknit Adaptor! This adaptor is designed for combining needle tips with M2 screw size to cables with M1.8 screw size. Supplied in sets of 2.