Bamboo Interchangable Circular Knitting Needle Set. The supplies for our popular interchangeable circular needle set are sadly running out. We have enough to make just a few more sets, but unfortunately we have no more of the longest circular cables. So we're selling the incomplete kits at a greatly reduced price while supplies last. Just like the regular set, it features bamboo needle tips for sizes #5 through #15, two disks to make 20" long straight needles; point protectors and three steel sewing needles; packaged in a beautiful fabric case, made exclusively for WEBS, but it only includes centers to make 18", and 24" circular needles.