Necklace Clasps with Jump Ring: Contains lobster claw clasps in 2 size, 10/12mm, jump ring in size about 18/20 Gauge,5x0.8mm/6x1mm,40pcs in total,in box, black color, They are perfect for a whole range of creative hobbies.Lobster Claw Clasps: Our stainless steel chain clasps are perfect for creating your own bracelets and and necklaces. Lobster clasps are a staple accessory for any ueser!Durable Material: All of our clasps are durable and heavy duty. As they are a durable stainless steel, they will compliment any jewellery or accessories you are making, without taking away the spotlight from your finished project!Easy To Use: Our bracelet lobster clasps are super easy to use. Simply attach a jump ring to the base of the clasp and close using a pair of pliers. Now you are ready to use your new clasp!Jump Ring: These jump rings are perfect for any project you have, whether to make chainmail armor, try out new weaves, make delicate necklaces, bracelets, anklets or something else entirely!