This is a practical, beautiful, and practical stainless steel thermos cup in the car SAFE TO USE:The tumbler cup is composed of food grade 304 stainless steel that is free of BPA, lead, and phthalates to keep liquids safe from any harsh chemicals or flavors. INSULATION TECHNOLOGY:Double Wall Insulation and keeps your drink hot for up to 6 hours or cold for up to 12 hours. 20 OUNCE CAPACITY:Insulated tumbler contains 20 ounces and is excellent for both hot and cold liquids. Travel coffee mug fits in the car cup holder and is slim enough to handle comfortably. PERFECT GIFT:A fashionable and appropriate gift for birthdays, Christmas, Valentine's Day, Mother's Day, and Father's Day. It is the ideal choice for home, office, camping, holiday, sports, and travel WASHING INSTRUCTIONS:When washing with water, avoid using cleaning solutions containing alcohol, and do not scrape or rub the cup body's surface image with harsh items, since this will cause the image to slip off.