... free,lead free, non-tox 1. Material: iron,brass,alloy2. Stone Colors: many colors available3. Plating colors: nickel, light pewter, black ... , various rhinestones for your choices: Swarovski,Chinese A quality chaton, acrylic stone.5. Widely use for western rhinestone belts, jeans, jackets, ... bubble bag.7.Production time: a whole production line for crystal rivets,fast time, 3~7 days for5000000 sets ...