This is a DIY ring-making kit for couples. Regular price: 20,900 yen (tax included). "Nameless Rings," handmade rings for two, come packaged with the necessary tools, allowing you to easily create them anywhere. You can make the rings while listening to your favorite music, remembering special places, trips to Disneyland, the wedding venue, etc. You can make the rings at home or anywhere else, anytime. Recommended for those who want to give a surprise gift but don't know the ring size. https://www.jamhomemadeonlineshop.com/c/namelessring/JGRI032U Size 11.13 is not available as it has been used. Other sizes available: 5, 7, 9, 15, 17, 19. There are marks from hammering on the mallet, but otherwise, the condition is good. Made of surgical stainless steel, it is rust-resistant and scratch-resistant, so it should last a long time. Please understand that this is a personal item and purchase accordingly. Color: Silver