● Company Management Number: B05-03 Popular Natural Stone: Pink Tourmaline ● Material: AA Natural Stone Pink Tourmaline, approximately 10mm ※ Due to the natural properties of this stone, there are more sand holes and cracks, especially on the pink parts of the surface. Also, there are some scratches and a small amount of black inclusions. Please understand. ● Inner Circumference Size: Approximately 155mm (Ladies' M+ size) Uses Ope-ron rubber, elastic Please ask any questions about size changes before purchasing. ● Comes with a gift pouch, usually ships on the same business day or the next business day. ● Stone Words: ☆ Pink Tourmaline Pink tourmaline is a stone with a wide variety of colors, from pale pink to rich and vivid pink-red, and stones with lilac or violet hues. Pink tourmaline opens your heart and allows you to overflow with life-filled love endlessly.