The 3320 is a compact flashlight made of Xenoy polymer that's light weight, corrosion proof, and extremely strong. The body is molded with a no-slip grip pattern and it comes with a sturdy black oxide coated steel clip. The switch is conveniently located in the tail for constant on or momentary action. Our exclusive Xenon lamp, used in many of our flashlights, is super bright and durable. It is powered by 2 CR123 lithium cells (included) that have a long shelf life. The M6 3320 - light in weight, big in performance.