Swarovski Crystal Hotfix Flatback RHINESTONE #2028 Xilion Rose ss20 Emerald (50) Genuine Swarovski Crystal Hotfix Flatback. Style / Shape: Hotfix ( with glue on back), Flatback Round ( #2028) Color: Emerald. Quantity: 50pcs Size: ss20 ~ 4.8mm For easier application, we recommend BeJeweler Pro Application Kit.