5 Large Rhinestone Button Embellishment Pearl Crystal Wedding Brooch Bouquet Invitation Cake Decoration Hair Comb Clip BT551 Free shipping for any additional items. US seller. Ship within one business day. Measurements (approx): 1" x 1" (25mm x 25mm) Materials: silver metal with A+ grade rhinestones and black crystal Shape: round Buy with confidence. We are the biggest rhinestone product seller on Amazon providing over 2000 rhinestone products.