Description: Pair of natural stone ear plugs in polished black with subtle blue-green chatoyancy (cat?s-eye shimmer). Smooth finish ? the line seen in photos is a natural banding within the stone, not a seam or crack. ? Size: ? Measured across the widest flare = approx. 3/4? ? Subtracted 1/16? to account for flare width ? True wearable gauge size ? 11/16? (?17?18mm) ? Commonly listed as 3/4? (18mm) plugs for search visibility ?? Weight: 19.1 grams for the pair ? Style: Double flare ? Color: Black with natural blue-green banding (smooth, polished, no chips) Condition: Pre-owned, very good condition. Please measure your current plugs to ensure proper fit before purchase.