Chiaogoo bamboo needles are made from Chinese bamboo, Moso bamboo which is the largest and strongest of over 1,000 different species; Dark Patina needles go through an additional heat process to obtain the dark color (no dyes or paints are used to achieve this rich color). Points are handmade by highly skilled artisans. Size is permanently laser engraved on each item for convenience and easy storage. Chiaogoo products are mainly made in Hangzhou, China, which are distributed from TROY, MI (United States) and adhere to the latest environmentally friendly manufacturing processes; Most products are 100% recyclable.