White-plated brass ball chain connectors for 1.8-3.2mm ball chain. White plate is the "silver" color most often seen on base metal jewelry and components. Ball chain is sometimes known as bead chain. White plating is also known as "imitation rhodium" and "silvertone". These pop over the last link of ball chain and have a loop at one end, so you can hang other objects from the ball chain, or hang the ball chain from something else.