Bead chain swivels are made of stainless steel with round wire end rings, so it can be used in saltwater or freshwater. Multiple beads design helps to keep the memory out of your line and thus effectively reduce line twist Provides a much more natural swimming action than other swivels by significantly reducing friction These swivels have a strong pulling drag. Sturdy constructed ensure high strength can allow you to easily handle tough fish. Package: 4 bead, 1/8” /3.2mm Qty.:20 4 bead, 3/16” /4.5mm Qty.:20 6 bead, 3/16” /4.5mm Qty.:20.