1440pcs Crystal AB Rhinestones SS4 1.6mm Flatback Gems for Nails,Crafts,Clothes por | ago 4, 2026• 1440pcs SS4 1.6mm Crystal AB Flatback Rhinestones. • Size: SS4 / 1.6mm (approx. • Flatback Design – Easy to glue onto nails, fabric, leather, and various surfaces. • Style: Flatback (non-hotfix). • Crystal AB Coating – Dazzles with rainbow reflections under the...