The 6″ (15 cm) natural color, bamboo double points are made of Moso bamboo and have precisely tapered, hand-crafted tips. The size is permanently laser imprinted on each needle. Sizes 0 (2 mm) through 2 (2.75 mm) come with six needles per set. Sizes US 3 (3.25mm) and larger come with 5 needles per set.