Sterling Silver Plain Edge Bezel Solid Back Cups. Wall height: 2.2mm. Die Struck. Machined. Made in the USA 1. Round 4mm Lot size: 10ct 2. Oval 6x4 mm Lost size: 10ct 3. Oval 8x6 mm Lost Size: 8ct 4. 12x10 mm 1ct 5. 14x10 mm 1ct Condition: New without tags. Conversion: 25.4mm=1" Please refer to the photos for further details and feel free to ask any questions. We combine shipping and apply volume discounts on all eligible orders. To combine shipping, simply add items to your cart and request an invoice. All orders ship within 3 days of receiving payment.