Custom 20oz 304L Stainless Steel Tumblers

20 Oz. Tumbler with Lid, Stainless Steel Vacuum Insulated Double Wall Travel Tumbler, Durable Insulated Coffee Mug, Thermal Cup with Splash Proof Sliding Lid,20oz tumbler is with Double-Wall vacuum technology to keep drinks hot for over 6 hours and cold for around 24 hours. Made from high quality 18/8 304 food grade stainless steel. Lead free and durable. Rust-proof, easy wash and unbreakable. Sweat proof, easy grip, the advanced technology prevents heat transfer to outer wall.