Sip, Sip, Hooray. This Insulated Mug Has A Leak-Proof Lid And A Double-Walled Design That Will Keep Your Drink Ice Cold Or Perfectly Hot. Designed For Casual. Dimensions: 13.1Cm X 8Cm (5.2" X 3.1"):volume: 12Oz (350Ml). Double-Walled, Stainless Steel Design Keeps Your Drink Hot Or Cold, Ambidextrous, Screw-Top Lid Is Leakproof, Secure Lid Flap Opens And Closes Easily For One-Handed Sipping-Snap The Flap Onto To The Rim Of The Lid To Keep It Out Of The Way When In Use, Ergonomically Designed Handle Is Comfortable To Hold, Built-In Silicone Coaster, Care Instructions: Wash Before Use. Please Hand-Wash The Body Of The Mug To Preserve The Finish. Lid Is Dishwasher Safe On Top Rack Only. Do Not Put In The Microwave Or Freezer, Always Use Caution When Handling Hot Beverages. Do Not Close The Lid If Contents Exceed 165 Degree F (73 Degree C).