Available in tip sizes US-4 through US-8, each combo kit comes with two interchangeable knitting needle tips in two lengths: 2-inch (5 cm) and 3-inch (8 cm).

Each pack also includes a 5-inch (13 cm) X-Flex Twist cable, a 6-inch (15 cm) X-Flex Twist cable, and two Small tightening keys.

These two X-Flex Twist blue cables join with the 2-inch and 3-inch tips to make 9-inch (23 cm) through 12-inch (31 cm) circulars.