100pc Sew On Flatback 8*13mm Big Crystal Acrylic Rhinestone Jewel/Trim/Sewing Sew On Flatback 8*13mm Big Crystal Acrylic Rhinestone Jewel/Trim/Sewing size8*13mm , 1 inch = 25.4mm or 1mm = 0.0393 inch QTY: 100pcs