chiaogoo bamboo needles are made from Chinese Moso bamboo which is the largest and strongest of over 1000 different species; Dark patina hands undergo an additional heat process to achieve the dark color (no dyes or paints are used to achieve this rich color). The tips are handcrafted by highly skilled artisans. Laser etched size for comfort and easy storage. chiaogoo products are manufactured in hangzhou, China, distributed from Troy, mi (USA) and conform to the latest respectful manufacturing processes; most products are 100% recyclable.