Solid Sterling Silver 3/4" Round Solid Copper 1/2" Round STAMPING SPACE:Up to 15 characters on the Brass.Up to 10 characters on the Sterling SilverUp to 7 characters on the Copper(If more characters are needed, additional charges may apply. Please contact us for more info.) CHECKOUT INSTRUCTIONS:Please include in "Special Instructions," if you are making any modifications. If your jewelry has names or birthstone month choices, make sure you have provided the necessary info. Please write any custom text EXACTLY the way you want it stamped including capitalization, punctuation, and any other details we need to know to create your custom piece exactly the way you want it. It will come as pictured if no modifications are requested. ADDITIONAL INFO:If you have any questions about your purchase or have your own idea for a custom piece, please e-mail us at firstname.lastname@example.org, or from the "contact us" page. Please see the "Shop Information" page for current production time and frequently asked questions.