KnitPro's fabulous Interchangeable circular needles. Multi-coloured Rosewood needle tips, 8cm long in sizes from 3mm to 15mm. Change needle sizes as you work in the round, or use the circular system for normal side to side knitting. If you need to use your tips for another project whilst still working on one you can simply unscrew the cables from the needle tips and cover the cable ends with the screw on closures. To be kept safe and secure and ready for you to pick up when you want to. Easy to use, this is a truly knitter friendly flexible system. Buy the connecting cables