Zing Deluxe Interchangeable Circular SetKnitPro Zing needles are made of superior grade light weight metal with the lightness and strength of aluminum. Warm to the touch and gentle in the hand, they are colour coded by size and feature smooth joins and flexible cords. The tips are left a shiny silver to make knitting with any colour a breeze. Set includes: 8 pairs of 5" needle tips: 3. 5, 4. 0, 4. 5, 5. 0, 5. 5, 6. 0, 7. 0 & 8. 0 mm (US 4, 6, 7, 8, 9, 10, 10. 75, & 11) 4 black nylon coated