Features: Essential accessory for jewelry making, these alloy jump rings are perfect for connecting and attaching various components together. High-quality alloy material, these jump rings are sturdy, durable, and resistant to rust and tarnish, ensuring long-lasting use. Suitable for both professionals and beginners in jewelry making, these jump rings come in a box with different sizes ranging from 4mm-10mm, providing versatility and convenience. These jump rings are widely used in making necklaces, bracelets, earrings, and other jewelry pieces, as well as DIY projects and crafts. With their easy-to-use open design, these jump rings can add an elegant to any jewelry or craft project. Specifications: Material: Alloy Weight: 81g Type BK/BZ/W/GD/S Size: 4-10mm TypeC Size: Approx. 0.03x0.12inch(0.7x5mm) Color: Black/White Silver/Gold/Silver/Bronze/Mixed Color Package Includes: 1 Box Open Jump Rings note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to difference between different monitors, the picture may not reflect the actual color of the item.