Large Thermos, 40 Ounce Tumbler, Stainless Steel Beverage Bottle, Double Walled Vacuum Insulated Coffee Thermos, Includes Tea Infuser and Cleaning Brush, (Black) KEEPS BEVERAGES COLD FOR UP TO 20 HOURS AND KEEPS BEVERAGES HOT FOR UP TO 15 HOURS: 18/8 premium food-grade stainless steel (no rusting, no taste compromise) and double walled. Vacuum sealed insulation and leak proof. Whether it's having coffee readily available at work, having a warm bottle of milk for the baby while on the go, or simply filling it up with an ice cold beverage for camping or hiking, Helix has you covered. INCLUDES TEA INFUSER: Enjoy your favorite teas by snapping in the included tea strainer. Because of the wide mouth opening, this tea tumbler allows you to easily pour for yourself or share with others. EASY TO CLEAN WITH INCLUDED CLEANING BRUSH: Our long-reach, soft bristled bottle brush included with your Helix Thermos, allows for easy cleaning. Hand wash ONLY. ATTACHED CAP HOLDER: This thermos includes an attached screw top cap holder that will prevent you from misplacing the cap, but still allow for easy drinking and pouring. 100% CUSTOMER SATISFACTION GUARANTEE: We stand behind our product and want to make sure that each and every one of our customers love their Helix thermos.