An oscillating sprinkler is a small, roughly rectangular-shaped object that sprays a fan of water over a large area of ground. These sprinklers are basic and one of the most common types of watering devices.
Oscillating sprinklers cover a rectangular patch of grass in a regular, even fashion. These simple sprinklers have a low profile and consist of a base that keeps the item steady, a connection for a hose and a hollow metal arm. The metal arm features small holes that allow the water to pass through, and it is moved back and forth by a basic motor to create the water fan.