[High Quality: Our coffee mugs are made from premium 18/8 stainless steel BPA free double-wall vacuum insulation suitable for many hot or cold beverage such as coffee soda milk tea or juice and can be kept warm/cold for at least 4 hours. 100% leak-proof: Our insulated coffee mugs with lids have fully leak-proof lock caps sealed silicone strips and screw caps designed to prevent spillage comfortable and safe to drink with one hand and also have a silicone non-slip base. Wherever you go without worrying about leaks. "Ideal Size: Available in 16 oz and 20 oz sizes and in a variety of colors. Car cup holder friendly portable size for carrying coffee on a daily basis and you can use it at the office school camping gym travel and more. It is also a perfect gift for Fathers Day Mothers Day birthdays and Christmas." Easy to clean: The large opening of our insulated coffee mug is easy to clean (we recommend you wash this coffee cup by hand) the coffee cup comes with a clear flip lid that is easy to open while keeping away from splatters and the sliding lid can be closed to keep clean when not in use. Cup accessories included: Comes with 1 cleaning brush and 2 straws. A cup cleaning brush helps you clean your cup even better. Our coffee cups have holes in the lids for drinking you can use a straw to drink.]