Geez, calm down Karen. This ceramic mug pipe is perfect for a quick sesh before going in to speak to the manager. Microwave safe, dishwasher safe, and no matter how much you yell at the staff it still holds approximately 11oz. Geez, calm down Karen. This ceramic mug pipe is perfect for a quick sesh before going in to speak to the manager. Microwave safe, dishwasher safe, and no matter how much you yell at the staff it still holds approximately 11oz.