The 12 oz. Double Wall Stainless Steel Vacuum Wine Cup is a high-quality wine tumbler made of stainless steel. The tumbler is covered by a tough and durable coating that makes it scratch-resistant and unbreakable. The surface of the tumbler is smooth, however to protect the coating, it is recommended to hand-wash and do not microwave. The double-wall vacuum insulation technology of the tumbler keeps your beverages fresh, whether it is hot or cold drink inside. It's perfect for outdoor activities such as picnics, hiking, camping, and more. It's also great for use at home or in the office when you want to keep your drinks hot or cold for an extended period of time. Clear drink-through lid. Keep cold up to 16 hours and keep hot up to 8 hours. BPA FREE. FDA compliant. TUMBLER E787 (T5214)