Using this tumbler is easy. Just remove the lid, pour in your favorite drink, whether it's a hot coffee or a cold lemonade, and put the lid back on. The tumbler will keep your drink at a nice temperature for hours. When it comes to cleaning, you can simply wash it with warm, soapy water. Just remember, if you fill it with hot water, the steam might lift the lid, but that's not a problem. Keep it dry when not in use to make it last longer.