♥ Materials ♥ Made of Hematite (red iron ore) and Terahertz ore (silicon). Both have a black or silver luster. ♥ Inner Diameter: 18cm - 18.5cm ♥ Design ♥ Octagonal beads with multifaceted cuts are arranged alternately with small round beads. This type of cut is sometimes called a "star cut." ♥ Effects ♥ As a power stone, hematite has long been popular for warding off evil and promoting blood circulation. It is also popular for relieving stiff shoulders and fatigue. Terahertz ore is expected to have health benefits (improved blood circulation and cold sensitivity) due to "terahertz waves." ♥ Purified at the crystal shop where it was purchased ✨✨ - Color: Black Thank you for viewing.