- This office coffee mug features a 'bird' printed at the bottom. A big hit at the office - This hilarious middle finger coffee mug is an ideal gag gift for White Elephant, Valentine, Christmas, birthday... - Made of 100% ceramic, this morning mug is easy to clean (recommend washing by hand) - Size (cm):9.5 (H) x8 (D) / 3.7 inches x 3.1 inches; Capacity (ml): 300 / 10oz; Weight (kg): 0.29 - Package includes: Funny Coffee Mug x 1