With the dual-wall insulation the 7 ounce stainless steel mug keeps liquids hot and cold. Great for teas and coffee while outdoors. The stainless steel design provides a sleek look while never rusting or affecting flavors. Steel mug will not create outside condensation or heat thanks to the double insulated layer. Mug holds 7 ounces of liquid. Measures approximately 3.625" tall with a 3" wide mouth.