ChiaoGoo SPIN Bamboo Needles feature keyless screw on connections and swivel cablesSPIN Bamboo Interchangeables Needles Set Large: US9 (5.5 mm) - US15 (10 mm) Set Includes: NEEDLES 6 pairs of 5" (13 cm) needle tips. Tip length includes metal cable join when connected to a cable. US sizes 9-15 / Metric sizes 5.5-10 mm. CABLES Three Spin "L" cables to make circular sizes: 24" (60 cm), 32" (80 cm), and 40" (100 cm). ACCESSORIES One "L" cable connector. Two "L" end stoppers. Two cord keys. Stitch markers. One needle gauge/ruler. One elegant, compact fabric case for storage.