Black Seed Bead Necklace — Bead Dangle Design Necklaces are Interchangeable. Simply slide Bar on your Beaded Pendant through Circular Toggle on Chain, once in place your Beaded Pendant won't come out until you take it out. Attach this beautiful Pendant to a Stainless Steel Chain of your Choice or you may prefer a Leather Chain.All Stainless Steel Chains are Hypo-Allergenic, Non-Tarnishing and extremely durable. Stainless Steel Chains are available in 18" and 28" adjustable lengths. Stainless Steel Clasp and all components are used to create chains.