Shut the front door, office, silence, up - 11 OZ Coffee Mug - Funny Inspirational and sarcasm - By A Mug To Keep TM A Mug To Keep is a registered trademark of Fred And Levine. High quality drinking mug nicely printed on both sides. High quality ceramic. Large, easy-grip handle. Treat yourself or give as a gift to someone special. Safe for Microwave and dishwasher. Your satisfaction is guaranteed.