Here's an ultra slim penlight that will hold up to all kinds of abuse. Built from tough, non-conductive fiberglass, this pen is at home in the toolbox, garage, kitchen drawer or your breast pocket or wherever you go. Small yet tough at 6 5/8" long and 3/8" in diameter. The high intensity 5mm LED is impervious to shock and has a 100,000-hour lifespan. It will run for 48 continuous hours and is water resistant due to an O-ring sealed polycarbonate lens. The tail switch is a one-handed operation and features momentary or constant on operation. Serialized so you can prove it's yours when that pesky neighbor borrows it from your garage. Includes 3 AAA alkaline batteries and an integrated pocket clip. Reading menus in a dark restaurant? No problem, you're covered.