Lykke Driftwood Interchangeable Circular Needles are made of smooth light birch. Their warm character make Driftwood needles easy on the hands and eyes--a true joy to knit with. We think the Drifwoods embody the best of both worlds--the glide of metal and the warmth and lightness of wood. Nice sharp tips and smooth joins, too. The set includes 12 pairs of needles (3.5mm to 12mm), 6 cords (2-24", 2-32" and 1-40") and accessories (2 connectors, 4 keys and 8 stoppers). Lykke means happy in Norwegian and we agree, these needles make us happy!