(20, 50, or 100pcs) Material: Brass, silver plated or gold plated finish; brass provides good formability, high workability and durability, and resistance to corrosion in comparison to other metal alloy ✦ These items are tarnish resistant, made in a special tarnish resistant process; with proper care, especially No Contact with chemicals, its color will last much longer than regular brass metal and other metal alloy ✦ ✦ Size: 20mm (or ~ 0.8 inch), Large clasp Size: 15mm (or ~ 0.6 inch) Size: 12m No Contact, Craft Making, Bracelet Gemstone, Birthstone Charms, Brass Metal, Necklace Bracelet, Charm Earrings, Spacer Beads, Lobster Claw