RUST-RESISTING MATERIAL: The bead chain necklaces are made of high quality stainless steel, not like the nickel plated ones, our bead chains are sturdy, rust-proof and durable, with smooth surface to give you a comfortable hand touching. | BALL CHAIN SPECIFICATION: The diameter of the bead is 2mm, the most common size of bead chain, and the bead chain measures about 75.7cm/30" in length,the matching connector 8mm in length. | ADJUSTABLE LENGTH: Each chain come with a connector for connecting or extending; with 50pcs extra matching connectors, you can also use scissors cut the chain to the length you want, and use them to connect, very convenient. | WIDELY APPLICABLE FOR: Daily use like sweater chain, tag chain,key ring chain, bracelet rope, clothing accessories, body chain harness, dog tag chain,bracelet rope, and other ornament decoration chains, they are also great for DIY craft project. | SUPER-VALUE PACK: You will get a package of 50x Bead Chains with 50x extra matching connecotrs, enough to meet your different needs, and you can use this product to make gift or decorative accessory for you family or friends.