These minimal stacker rings are hammered and made to order with solid 925 sterling silver. Can be ordered in any combination of polished silver or blackened silver, leave a note at checkout, or email me after checkout, with your size and color preference. Allow up to 1-2 weeks processing. Free USA shipping, international buyers add $14. Email firstname.lastname@example.org for questions or help with your purchase. Size is measured by inner diameter of band in millimeters.