A shower rod is a cylindrical bar used to hang shower curtains in a bathroom. It is typically made of materials like metal or plastic and can be adjustable to fit different shower sizes. The rod is mounted either on the wall or suspended from the ceiling, providing a barrier that keeps water contained within the shower area. Shower rods come in various styles, including straight, curved, and tension rods. A shower curtain is often used in conjunction with the rod to prevent water from splashing outside the shower. Some rods also feature decorative designs to enhance the bathroom's appearance.