The 5ive Star Gear GI Spec Canteen Cup is made to the same specs as the original US military version with a heavy gauge stainless steel. It gives you the ability to collect water with ease, use it for boiling water straight on the fire, or cooking and eating your meals with the use of a stove. Fits perfectly around the 1qt military style canteen and can combine with the Folding Stove w/ Fuel to make a great wilderness and survival cook kit. Item is compatible with the GI 1qt Canteen.