SPIN Bamboo Interchangeable 5" (13 cm) Tip Complete Set. Set includes tip sizes US9 (5.5 mm) to US15 (10 mm). This set includes the following cable lengths: 14" (35 cm),22" (55 cm), and 30" (75 cm) to make 24" (60 cm), 32" (80 cm), and 40" (100 cm) circulars. SPIN nylon cables allow the tips to swivel freely and have lifeline holes. Connectors, end stoppers, tightening keys, stitch markers, a needle gauge and a compact, green-ribboned, fabric case are all included with this set.