MAUAG Mug Inc Designs, Funny Christmas Gifts Bosses Day Boss Office Coffee Mug in Natural, 11 Oz Capacity. Each mug is microwave & dishwasher safe. The phrase "World's Best BOSS" is clearly scripted and centered on the front of the mug. The perfect size to enjoy your morning beverage and the perfect gift for your loved ones on that special day. Ideal to surprise friends or co-workers at the office on any occasion. This product adds to home. Why? Because we like you! Yours today for a very cheap price.