Bead Size: Approximately 8.5mm Inner Diameter: Approximately 16cm Toroleite is a phosphate mineral characterized by its vivid blue, green, and white inclusions, and is known in Japanese as "Tororu-seki" (Troll Stone). It is named after "troll," meaning "fairy" in Nordic mythology, and is treated as a rare natural stone due to its beautiful appearance. Toroleite is said to be a stone that connects to higher dimensions, and is also called an "Ascension Stone" for its high spirituality, enhancing mental stability, insight, and concentration. Instant purchase is welcome. The photos are taken indoors under natural light or electric light, using a smartphone. We try our best to capture the colors as accurately as possible, but there may be slight differences in how the colors appear. Please understand. Returns are not accepted for reasons such as a difference in image from the actual product. As it is a natural stone, please refrain from purchasing if you are concerned about imperfections, inclusions, etc. m(_ _)m Returns are not accepted after purchase. Thank you for your understanding.