One tenet of ultalight backpacking is that if you can find multiple uses for an item then you should use that item over one that only has a single use. Knives/multi-tools and lighters typically are single-use items even though both are often used in a wide array of situations. Solo Lighter Company has created a unique product that merges two very useful pieces of gear into one functional whole. The Lighter Multi-Tool weighs 1.8 ounces (53 grams). In its sleek all metal body you will find a butane lighter, small sharp non-serrated knife, nail file/flat head screwdriver, and a bottle opener.