It is a post type piercing using nickel-free metal fittings. Mahikari yen 1 Circle. 2 Serenity. Dear Sir. They are handmade one by one, and the woodgrain pattern is also various. It is only one accessory for you in the world. The trees change deeply and calmly with the age and the moon. Please enjoy the natural flavor. When worried, you can use it for a long time if you care. How to Care Wooden → wring perfume oil or linseed oil on a cloth and wipe it. (Edible it does not matter.) Wipe off with a dry cloth such as bracket → glasses wipe.