I carry a round tin that has a diameter of 4" and a usable height of 1 1/4" with the lid on. When I tape the two pieces together, it's waterproof. I carry a bed of tinder, a small tin of char cloth and my striker inside. The tin on the left is the one I carry. The other is about the size of my char cloth container.<br><br>http://www.hunting-pictures.com/members/archer071/tins001.jpg