AVTARS 40oz Stainless Steel Tumbler with Handle and Straw Lid,100% Leak-proof Travel Coffee Mug, Wall Vacuum Insulated Mug Keeps Drinks Cold & Hot,Dishwasher Safe Cup for Water Iced Tea or Coffee

[Prepping the Tumbler]:Before the first use, wash the 40 oz tumbler with handle and straw lid thoroughly with mild soap and water. Rinse well and let it air dry. [Filling the Tumbler]:Open the straw lid by either removing it or opening the designated access point. Pour your beverage of choice into the tumbler, making sure not to overfill. Leave some space at the top to avoid spills when placing the lid on. [Attaching the Lid]:Once you've filled the tumbler with your beverage, align the straw lid with the top of the tumbler. Press or screw. [Using the Straw]:Insert the straw through the hole in the straw lid, ensuring it reaches the bottom of the tumbler. Sip your beverage through the straw. The straw lid design should allow you to drink without needing to remove the lid entirely, preventing spills and maintaining the temperature of your drink.[Carrying with the Handle]:Hold the tumbler by the attached handle for easy transportation. This is particularly useful if the tumbler contains a hot beverage, as the handle will stay cool.[Cleaning After Use]:Once finished with your beverage /coffee/ water, remove the straw lid and empty any remaining liquid. Wash the tumbler, lid, and straw with mild soap and water. Let them air dry completely before reassembling and storing. Maintaining Temperature: For cold drinks: You can pre-chill the tumbler by filling it with ice water for a few minutes before emptying and adding your cold beverage. This can help maintain cold temperatures for longer periods. For hot drinks: Pre-warm the tumbler by filling it with hot water for a few minutes, then empty it and add your hot beverage.