Premium Stainless Steel Vacuum Insulated Tumbler with Dinosaur Pattern - 20oz Double Wall Travel Mug for Coffee, Tea & Cold Drinks - Leak Proof Lid & Straw Included - Perfect for Office, Gym, Camping & Outdoor Activities

Tumbler Precautions for Use: 1. Wash the inside and outside of the cup with neutral detergent in warm water before use. 2. In order to achieve the best effect of keeping the cup hot and cold, it is recommended that be added with hot water or ice water for preheating or precooling. 3.Add boiling water to cups. Do not use a straw when drinking to prevent burns. 4. When adding boiling water into the cup, it should not be too full to prevent overflow and scalding. 5. Avoid the deformation of the cup body caused by falling, collision or strong impact, which will affect the efficacy of the product. 6. Avoid direct heating or place at high temperature. It is strictly forbidden to heat the product in an open flame, microwave oven, induction cooker, and dishwasher.