1.Extends to 30" & Collapses to 6",stainless steel,light weight, 2.Far too many people underestimate the power of OXYGEN when starting a fire,a fire needs 3 things: HEAT SOURCE, FUEL and OXYGEN. This collapsible metal bellows is simple but incredibly effective. 3.The best camping idea most people don't carry,The telescope design allows close interaction with the fire without crouching down to blow on the embers or burning your face.