A pool noodle is a cylindrical piece of buoyant foam, sometimes hollow. Noodles are used by people of all ages while swimming.
Pool noodles are useful when learning to , for floating, for rescue reaching, in various forms of water play, and for aquatic exercise. The most common dimensions are about 160 centimetres (63 in) in length and 7 centimetres (2.8 in) in diameter. The pool noodle is also used for people who experience difficulties in swimming.