This ChiaoGoo SPIN Bamboo Interchangeables Set includes 4" bamboo tips (US2-US8), as well as three cable lengths to make 16", 22", and 30" circulars. The SPIN nylon cables allow the tips to swivel freely. The set also includes cable connectors, end stoppers, T-shaped tightening keys, stitch markers, a needle gauge, and zippered fabric case. SPIN and TWIST tips, cables, and accessories are all switchable!