Captive bead rings are a popular style of body jewelry that consist of a hoop with a removable bead or ball that is held in place by tension. These rings are commonly used for various piercings such as earlobes, eyebrows, lips, and nose. Captive bead rings come in a variety of sizes, materials, and designs, making them versatile for different body piercings. They are often made from stainless steel, titanium, or gold, and are known for their easy insertion and removal.