When you receive the tumbler, the handle may not be pre-installed. However, the package includes a free screwdriver and accessories, allowing for easy self-installation.

When using the tumbler, be sure to drink water that is less than 60°C (140°F) to avoid burns. Avoid aligning the human body when switching the tumbler, as this can also lead to potential burns.

It is strictly forbidden to place the products near open flames, microwaves, induction cookers, or dishwashers. Doing so can damage the integrity of the tumbler.

Furthermore, it is crucial to avoid adding dried ice, carbonated beverages, soy sauce, soup, or any liquids containing alkaline or acidic ingredients. These substances can potentially corrode the interior of the tumbler.

When cleaning the tumbler, use a neutral detergent and water. Refrain from using alkaline bleach, chemical cloths, or other harsh cleaning agents, as these can also compromise the tumbler's durability and performance.

The Stainless Steel Tumblers with Straw are crafted from premium 18/8 food-grade metal, ensuring their longevity and durability. These tumblers feature a double-walled vacuum insulation design that keeps your beverages hot for up to 8 hours and cold for up to 10 hours.

The non-sweat design of these tumblers prevents condensation from forming on the surface, keeping your hands dry and providing a secure, non-slip grip. Additionally, the narrow bottom and wide mouth make these tumblers cup holder-friendly, allowing for easy placement in most car cup holders.

The included handle and reusable straw enhance the portability of these tumblers, making them an excellent choice for your daily commute or road trips.

These tumblers are a fantastic gift option for teachers, doctors, drivers, or anyone who needs to stay hydrated throughout the day. They are also suitable for various occasions, such as Father's Day, Christmas, Thanksgiving, Easter, and more.

Lastly, the Dishwasher-Safe Insulated Coffee Tumbler saves you time and effort when it comes to cleaning. Simply place the tumbler and its lids in the dishwasher, and they'll come out sparkling clean, ready for your next use.

These tumblers are versatile and suitable for a wide range of activities, from commuting and road trips to vacations, daycare, school, youth sports, picnics, field trips, and birthday gifts.

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