This is a cotton pearl back catch from piii. It's very cute, as the pearl peeks out from below when used with your favorite earring backs. The case shown in the picture is not included. Brand new, unused. This is a current item, priced at ¥2310. From the following website: This is an earring charm that you attach from the back of your earlobe to your favorite earrings. When worn, the pearl peeks out from under your earlobe. Please use it with your existing earrings. ◯ How to attach Wear your earrings, pass the round part of the back catch through the post that comes out from the back of your earlobe, and then put on a regular catch behind it. It will be sandwiched between your earlobe and the catch. ※ This is sold as a single earring. The earrings are for illustrative purposes only. They are not included. ◎ What is Cotton Pearl? ◎ Cotton pearl is an imitation pearl made by compressing cotton into a cotton ball and applying a pearl coating. It has a unique texture and color, like a real vintage pearl, with an "antique color" and "semi-matte texture" pearl coating. As the name suggests, cotton pearl is made of "cotton," making it a surprisingly lightweight accessory part. Metal fittings: Gold plating Cotton pearl: 6mm, 8mm I am also selling other works and clothing by piii.