This item uses natural stones. The string is elastic. Rose Quartz 10mm & 8mm / Crack Quartz 8mm / Other decorations Inner diameter: Approximately 40mm 【Rose Quartz】 Rose quartz has a gentle pink color. It is often called the "stone of love," but more than that, it is said to soften the heart and remind you of the importance of self-love. Its gentle color will gently accompany you in your daily life. 【Crack Quartz】 Crack quartz sparkles by reflecting light with its crack-like pattern. It is also said to be a stone that brightens the holder's mood. The sparkle changes depending on the angle of the light, showing a small expression every time it moves. ◇ Because natural stones are used, there may be chips, scratches, and variations in color. We hope you enjoy these characteristics. ◇ As this is a handmade item, please refrain from purchasing if you are looking for the perfection of a mass-produced product. ◇ The knots and ends of the string may not be tucked away or may be left as part of the design. ◇ The color of the product may appear different from the actual product depending on your device and environment. Please check the profile for bulk purchases. Please refer to the second image for the size. ❁⃘*.゜