Design: Named for its rotating "wings" that resemble a butterfly in motion.
Operation: Water pressure causes the wings to spin, evenly spraying water in a circular or semicircular pattern.
Material: Commonly made from plastic, brass, or aluminum.
Coverage: Typically covers 15–30 feet in radius, depending on pressure and model.
Connection: Standard hose-end or pipe-threaded inlet for easy connection to garden hoses or irrigation systems.
Adjustability: Some models allow spray pattern or pressure adjustment for efficient water use.