Spread some love and joy with I Know I Swear A Lot, I Am Sorry 12oz Adult Humor Mugs! Want to lighten up your morning routine? Featuring a fun and friendly design, this mug changes from black to grey when filled with hot liquid. Vibrant and full of life, it's perfect for all coffee lovers – men and women alike! Get your mood on the right track every morning and start each day off with a smile.