Size: about 5mm wide, 11mm long, hole: 1mm. Perfect size for your bracelet and necklace making. You can use them to extend your jewelry chain length, beautiful and practical, bringing you fluent using experiences. Quantity: 100 Sets; Different Mixed Color: Sent randomly. Quantity for each color will not be the same. Sufficient in quantity and nice in combination to satisfy your various needs. Brass Magnetic Clasps: Stylish design and beautiful appearance, effortless to connect most jewelry clasps, not easy to deform or break, suitable for long-term use. Features: The clasp is a magnetic latch, effortless to connect most jewelry clasps; It can apply as a necklace or bracelet latch which is beautiful and practicable. Perfect for Necklace and Bracelet: Suitable for making gemstone bracelet, no more fumbling with tiny clasps each morning; simply attach to your favorite necklaces and bracelets for instant accessorizing.