If you've ever struggled to open those stubborn military-style water cans, this wrench is about to become your new best friend. It's specifically designed to fit Scepter LCI and Skilcraft military water cans in both the 2.5 gallon (10L) and 5 gallon (20L) sizes. The glass-reinforced polymer plastic is seriously tough - it can handle significant torque without breaking, which is perfect for when lids get over-tightened, threads get fouled up, or cans expand and make the lid stick. The handle has built-in ventilation holes and even a nozzle wrench, which is handy for controlling water flow or releasing pressure. The lever design gives you great mechanical advantage - you don't need to be super strong to loosen even the toughest lids. The head matches the shape of military can lids perfectly so it grips securely without slipping or damaging the lid. The handle is ergonomically designed with non-slip materials and contours that make it comfortable to grip firmly. Seriously, if you use these types of water cans for camping, emergency preparedness, or outdoor work, this simple tool saves so much frustration. No more using pliers that damage the lid or struggling until your hands hurt. It's one of those tools you don't realize you need until you have it, and then you wonder how you managed without it. Well worth the small investment for anyone who regularly uses military-style water containers.