Psyche 10 oz single wall ceramic mug with matte exterior and gloss interior. Orange in / black out stoneware C-handle mug! This stoneware mug is designed for use with piping hot coffee, herbal tea, or decadent hot chocolate. It's fully vitrified for superior durability and lasting performance, and it's oven safe up to 350 degrees Fahrenheit for superior versatility. It features a sleek black color on the outside and a brilliant orange color on the inside.