Made of stainless steel, our lobster claw buckles and jump rings prevent rust, lose luster and damage.The smooth automatic closing mechanism ensures a safe and experience - perfect for everyday jewelry wear. Each set contains 100 buttons (12x6mm) and 200 jump rings (5mm), which is perfect for bracelets, necklaces, anklets, key chains, etc.Universal size is suitable for exquisite and bold designs, providing an excellent choice for repair or jewelry making. Designed for professionals and DIY people, these buckles are made of a smooth oval design that blends seamlessly into the jewelry.The smooth trigger release makes opening/closing a breeze, while the sturdy construction keeps the parts intact. From repairing broken chains to creating personalized gifts, these buckles are suitable for beading, jewelry and metal extension chains.Hypoallergenic stainless steel material, suitable for sensitive skin. Color:As Shown Material:Metal Package Contents: 300 * lobster claw clasps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.