CARON-Tulip Circular Knitting Needles. All bamboo needles are not created equal, something knitters immediately discover when they pick up a set of Tulip circulars. The smooth tips give precise stitch control and fluid cable join allows stitches to glide effortlessly on the needles. A full range of smooth circular needles completes the offering of extraordinary Tulip products. The quality construction, warmth, and smoothness is immediately evident in these unique top quality tools made with Kanaderu bamboo. The smooth tips give precise stitch control.