If you have a desired inner circumference, please be sure to let us know before purchasing. It will cost an additional 50 yen for every 1 cm increase. Reducing the size is free. Inner circumference: Approximately 17cm (stretches) Engraved Four Gods Beast Crystal 14mm Red Crack Crystal 14mm Rondel *The number of stones varies depending on the size. [Genbu] Guardian of the North: Prosperity of descendants, longevity [Suzaku] Guardian of the South: Disaster prevention, family prosperity [Byakko] Guardian of the West: Family safety, business prosperity [Seiryu] Guardian of the East: Success, immense wealth [Crack Crystal] Crack crystal is said to possess powerful energy, and cracks are believed to occur because of this, making it even more powerful than crystal. Polished ones were used as sacred objects and divination tools. It is particularly excellent at warding off evil and purifying. It will purify the owner's mental traumas and negative emotions, making them pure. It is said to have the effect of resonating with the owner and drawing out intuition and insight, so it is often used as a tool for divination and meditation. In addition, it has the effect of improving fortune, and is considered a power stone that attracts good luck, bringing wealth and honor to the owner, so please give it a try. *Because it is a natural stone, the color and pattern may differ even for the same stone. *The color may differ from the actual product depending on the lighting. In addition, it may contain cracks and inclusions unique to natural materials. Please understand this beforehand.