This is a charm made with aquamarine (8mm), moonstone (6mm), and quartz (button cut). In addition to the heart-shaped lobster clasp used in the image, it can also be changed to an earphone jack or strap. If you wish to do so, please let me know before purchasing. *This item is designed to be attached to zippers, etc., but please be careful as pulling on the charm may cause damage. [Size] Approximately 2cm, excluding the lobster clasp. You can also change the stones or have a charm made with your preferred type, color, and stones with specific effects. In that case, the price will vary depending on the stones used, so please let me know before purchasing. We also offer a discount for bulk purchases. Motif material...Natural stone