I keep one in my truck in my survival kit, and use it to stoke my campfire. It allows you to put maximum air flow right where you need it to get a roaring hot fire, without huffing and puffing like an idiot!
Constructed of stainless steel, this collapsible tube makes life around the camp a lot easier. Just expand the tube and blow into the fire from a safe distance. Lightweight and compact for backpackers or stow it in your vehicle.