Why sip from a boring flask when you can ignite conversation with this super unique Hydrazine Barrel Flask, a cheeky tribute to the dangerously volatile (and completely undrinkable) propellant that powers actual spacecraft? Mark Watney approved as long as you have an iridium catalyst. Shaped like a mini fuel drum and stamped with all the actual NASA required barrel markings for methylhydrazine and hazard symbols for dramatic effect, it’s the perfect mix of nerdy, nostalgic, and just a little unwise-looking. * 25 ounces of capacity! According to Alexa, that's close to a full 750ml bottle, * Stainless steel with matte “hazard barrel” finish * Leak-proof screw cap and industrial-style ridges * Not actually dangerous... unless overfilled with confidence Quirky. Questionable. Quintessentially space-nerd. Because some fuels are flammable—others are just fun.