ADJUSTABLE PATTERN: Twist the head to adjust the stream from a high-pressure jet, to a wider area cone. DURABLE: Cast zinc core for strength and durability. High quality materials resist corrosion and deliver long lasting performance. THUMB CONTROL: internal valve is controlled by thumb control style lever making it easy to use and eliminating the need to lock or hold in position. COMFORT: Contoured overmold body provides a secure grip surface.