50Pcs Craft Buttons Sewing Buttons Crystal Flower Shaped Acrylic Buttons Fit Sewing Or Scrapbook Sewing DIY Craft 18.0mm (Purple) Material : Acryl Rhinestone Size Approx about :18.0mm / Hole: 1.6mm Thinkness:6.5mm Color : Purple Quantity : 50 Pcs of Conversion : 1 inch = 25.4mm or 1mm = 0.0393 inch