Portable Pen-Style Flashlight (或 Straight Tube Aluminum Flashlight)

This is a compact blue portable flashlight with a pen-style design. Its main body has a classic straight tube shape, with a slightly bulbous tail, likely housing the batteries. The front end is the light head, and the middle section features a textured grip for better handling, along with a silver metal clip for attaching it to a pocket or toolbag. A small black push-button switch is located behind the grip for power control. The overall appearance is simple and utilitarian, with an aluminum alloy construction that gives it an industrial feel.