Mosaic Interchangeable Circular Needle Set US 4-11, Knit PicksNow there's no need to choose between your favorite Knit Picks needle colors, with the Mosaic Interchangeable Knitting Needle Set, you'll have all the versatility of Knit Picks' Interchangeable system, plus keep things fresh with a new color every time you change tip size. You can still mix and match any Knit Picks knitting needle tips with their cables to easily create the circular needle that you need for your next project. You can even buy more