grandpa birthday mugs poppy for president funny fathers day mug coffee mug tea cup blue thiswear a perfect gift for grandpa to give as a fathers day gift or birthday gift. this traditional 11 ounce white ceramic coffee mug is perfect for any hot beverage. wide mouth and large c-handle allow for easy, every day use. whether drinking your morning coffee at work, or sipping on a hot cup of tea at home, this mug is up to the task. microwave and dishwasher safe for your convenience. all designs are lead free.