Knitter’s Pride Zing Deluxe Special Interchangeable Needle Set includes seven pairs of tips in US sizes: 4, 5, 6, 7, 8, 9 and 10. It also includes two 16” cables, 4 end caps and 2 cable keys. Zing Needles are vibrant color-coded aluminum needles that allow your yarn to slip easily as you work. They are color-coded by size making it easy to identify and organize your needles. These special tips are shorter than the standard tips, especially designed to produce circulars in 16” lengths when combined with the 16" cable. This lovely set is packed in a red and blue striped fabric case. It's best to tighten your needles by holding the base.