NEW ThreadNanny CZECH Quality 10gross (1440pcs) HotFix GOLD Rhinestones Crystals - 5mm/20ss GOLD Color 10 Gross (1440 Stones Total) CRYSTAL GLASS Rhinestones. These are NOT acrylic. Extra Sparkle GOLD (AURUM) hotfix Rhinestones Czech Quality Precision cut multi-faceted - flatbacked Glue on bottom makes them easier to attached 5mm Size (20ss). Other sizes available too.