- This funny coffee mug gift set includes 1 piece 11oz coffee mug and 1 piece color box. - This father coffee mug is HD printing by double-sided, it is easy for you to see the printed words from front side or behind side. - The HD color ink is long lasting, lead-free, and eco-friendly. - This coffee mug is easy to clean. It is safe to wash by dishwasher. - it is safe for microwave as well.