Check the listing for details. 38mm black ceramic Bezel Insert suitable for 40mm watch case men's watches. Color: Black, Condition: New without tags. Listed at 9.99 USD. Outer diameter: 38mm Inner diameter: 30.8mm Suitable for 40mm SUBwatch case --------------------------------------------------------------------------------------------------- 1. Adhesives are not included in this transaction. 2. Do not try to force the insert to fit your watch if it is not the right size. 3. These inserts are made with ceramic and easy to break. 4. These items are aftermarket replacement. They won't be perfect as the OEM / Original version as you purchase in boutique store. But they will work or fit most watch model collection. Please double check your own size and reference detail and review our detail size in description before you purchase them. 5. Many watches appear the same but may be different in case size or year model. We would like to avoid any returns or exchanges. We are also an email away to assist with any questions you may have. 6. If there is a problem with item you receive, please contact us before leaving any feedback and wait for our email. We should be able to resolve the problem. They might come with some small hair scratches with them. But it will be reasonable.