DescriptionMade of stainless steel material, this set of extender chains is sturdy and safe. Perfect for using on necklace, bracelet and jewelry making supplies. The chain extender set is in different lengths, different sizes to meet your different needs.Features- Color: Black. - Material: Stainless Steel.- Size: Approx. 30mm+50mm+75mm+100mm+125mm+150mm . - Quick to connect: Features the lobster clasp, effortless to connect most jewelry clasps, make your handmade necklaces, bracelets process easier. - Sturdy material: stainless steel, have strong holding strength to keep jewelry more secure; Easily store and carry these small extender chain. - These are good choices for DIY jewelry findings making, easy to put on or take off, convenient to use and enable you to add the length of your jewelry easily. - Multiple sizes meet your different needs. - Classic lobster claw clasps, easy to put on or take off; Convenient to use.