Ozark Trail 18 ounce double wall stainless steel tumbler will keep you hydrated all day long with less refill. With a 18-ounce capacity, this reusable tumbler is the drinkware everyone needs in their pantry. Straw lid keeps liquid hot and cold longer compared to previous tumbler. It is made of food grade stainless steel which is firm, rustproof, no harm to human health, and without metallic taste. It has large handle that prevents it from slipping out of your hand or accidentally dropping it. The removable lid has two openings. One for the included straw and a wider opening to drink from. Suitable for swimming, Sports, Travel, Road trip, Barbecue, Camping, Parties, Etc. You can share them as gifts on birthdays, Thanksgiving, and Christmas with your family, friends, teachers, colleagues, and sisters.