Pool noodle

A pool noodle (also known as a water log or woggle in the UK) is a cylindrical piece of polyethylene foam, sometimes hollow. Pool noodles are used by people of all ages while swimming.

Pool noodles are useful when learning to swim, for floating, for rescue reaching, in various forms of water play, and for aquatic exercise. The most common dimensions are about 160 cm (5'3") in length and 7 cm (2.5") in diameter.