9mm, inner diameter 16cm ¥300 off for purchases of 3 or more items! When requesting a combined purchase, please request with the price reduced by ¥300. Rabbit hair is a type of rutile quartz in which delicate, soft, needle-like inclusions (internal inclusions) are trapped, resembling rabbit hair. Also known as "angel hair rutile," it comes in various colors such as white, yellow, red, orange, and black.