Manufacturer: Denise Interchangeable Knitting & Crochet Denise Interchangeable Knitting Needle 2-cord Singles sets are a great way to add to your Denise collection or as a taster set to give the needles a try. This set includes one pair of needle heads, cords in 12" and 16" lengths, plus two end buttons and one extender for cord-to-cord connections or to make a closed-loop stitch holder. Makes 20" and 24" circulars or a pair of flexible straight needles. Interchangeable with all Denise knitting or crochet products. Made in the USA and guaranteed.