This is a 2mm wide round ring with a mirror finish. The ring material is surgical stainless steel with K18 gold plating, so it won't rust even if it gets wet, and it's durable. Ring size: Size 16 Available sizes: Size 26, Size 23, Size 21, Size 18, Size 16, Size 14, Size 11, Size 9, Size 6, Size 4. You can also change to these available sizes! Simple, highly luxurious, and very popular design! Free shipping! The thickness may vary slightly depending on the size. Please confirm your size before purchasing, as returns and exchanges due to buyer size errors are not accepted. The first person to purchase will be prioritized, even if comments are in progress! Shipping will be via regular mail (mini-letter). Please note that there is no tracking number or compensation. For those who prefer anonymous shipping with a tracking number and compensation, you can upgrade to Rakuraku Mercari Mail (Nekopos) for an additional 120 yen. Please comment before purchasing if you would like this option! For those who want to receive their order at a convenience store, you can upgrade to Yu-Yu Mercari Mail (Yu-packet) for an additional 120 yen. Please comment if you would like this option.