... ,Shoes,Belts,Dog Collar,Bags Strass Crystal Rivet Stud Open Closed End Single Double Cap Silver ... Strass Crystal Rhinestone Rivet for Shoes Closed End 1) Material of Stones ... : Rhinestone; 2) Material of Rivet : Iron; 3) Color of Rhinestone: Crystal,Crystal ab ... Sapphire,Peridot,Black Diamond,Amethyst; 4) Size of Rivet : 3.5mm,4mm,5mm,6mm,7mm,8mm,9mm ...