Deadstock Vintage Brass Marukan Ring Key Holder BRASS Leathercraft Antique Accessory Necklace Pendant Top Key Ring Set of 10. These are brass Marukan rings, deadstock items with a substantial weight. Please refer to the images for more details. Brass material, plated finish. Actual Size: Outer diameter: Approximately 3 cm. Inner diameter: Approximately 2.3 cm. Wire diameter: Approximately 3.5 mm. Thickness: Weight 9g There may be some corrosion, discoloration, and minor scratches due to the passage of time. They should become clean if polished with a dedicated cleaner. Although unused, these are deadstock items that have been stored for a long time, so please refrain from purchasing if you are sensitive to such things. [Returns after the transaction are not accepted, so please only proceed with the transaction if you understand the product.]