The TWIST 5” (13cm) MINI set has tips made of surgical stainless steel. The cables have a tightening hole to allow for the easy insertion of a lifeline. Included with the set are 5 pair of tips, 3 [M] cables, a tiny Tools Kit (containing 2 cable connectors, 2 end stoppers, 6 stitch markers, 4 tightening keys, and a heart-shaped rubber gripper), tip sleeve with labeled pockets, a needle gauge and, a black mesh pouch that holds everything. This set allows you to make 24-inch (60cm) and longer circulars. Caution: TWIST cables are made of a multi-strand steel cable with nylon coating. They WILL kink when compromised. Use carefully and store in a safe place when not in use.