Betula Interchangeable Circular Needle Set Deluxe - CeruleanBetula is an interchangeable circular needle set for people who want quality, aesthetics, and newfound knitting joy. The set does not only include the most commonly used sizes but also a couple extra. With the deluxe Betula Set, you get interchangeable circular needles ranging from 3,5 mm all the way up to 12 mm (US 4 17) (and the sizes are laser printer on the needles, to keep them from rubbing off with wear). The needles are practical, strong,