These tumblers are top of the line in quality and will hold ice up to 24hrs. These would make the perfect gift for the hard to buy for person. They would be a great add on item for the dad or grandparent that likes to travel with coffee to their kids sporting events. These are not dishwasher safe. They come with a metal straw and a cleaning brush. You can send me any personalization you would like on them and we can get them looking great!