The "rescue buoy" is a hollow plastic rescue flotation device. It is referred to also as a Torpedo Buoy, because of its shape; and is often called a "Torp" for short by lifeguards. Because of its rigidity, it is slightly more hazardous in surf conditions. However, the rescue buoy generally has more buoyancy than a rescue tube, allowing the rescuer to assist multiple victims. There are several colors and sizes available commercially. The rails, or sides, or the buoy have handles allowing victims to grab on. Like the tube, the buoy is connect by a rope to a strap the rescuer wears. This allows them to swim while towing the buoy and victim. The buoy may also be connected to a landline device, which allows individuals onshore to pull the rescuer and victims back to shore.