Heavy gauge aluminum. Screw-on top with safety chain. Silver colored. Our canteens are designed to be used by hikers, campers, soldiers and workers in the field. GI Government Issued style. Holds 1 quart of any type of liquid. Cap is secured to canteen. Fits into GI style canteen covers. Aluminum GI style 1 Quart canteen. Approximate width: 5". California Prop 65 WARNING: This product contains a chemical known to the State of California to cause cancer, birth defects and other reproductive harm.