What is a rescue tube used for?

A rescue tube is specifically designed as a flotation device that lifeguards use to assist in rescuing swimmers who are in distress. It provides buoyancy and stability, allowing both the lifeguard and the individual being rescued to stay afloat. The design usually includes handles or straps that facilitate easy grasping and maneuvering, making it crucial for effective rescues in emergency situations.

While other options refer to different types of equipment or purposes, none fulfill the primary function that a rescue tube serves in a lifeguard's toolkit. The rescue tube is an integral part of a lifeguard's rescue techniques, allowing them to reach individuals quickly and safely, ensuring both their own safety and that of the swimmer in need.