Introducing the versatile stainless steel sippy cup tumbler with handles—a convenient solution for kids and babies that's both portable and durable. Moreover, it transforms into a 12oz (350ml) skinny tumbler, maintaining the temperature of your hot coffee, tea, or chilled beverages for over 6 hours. With lids included in the packaging, you have the choice between the handle lid for the sippy cup and the spill-proof lid for the skinny tumbler. Sized at 5.1" L x 2.7" W.