This coffee mug is all handmade, it is one of a kind. Every piece is one of a kind. The size is for american coffee, it is strong and heavy so in this way is difficult to break. It is absolutely beverage safe. NO toxic glazes used. NOTE: dishwasher and microwave safe This is functional art, not industrial production!If you are looking for something of really special, different and handmade this is the right item and the right shop! Every single piece need to be fired for 24 hours plus the time to make it and paint it!It is not printed! PAY ATTENTION: since every item is handmade they will turn out similar but not identical. MADE TO ORDER: 30 days waiting time, depends by the amount of the order. If the orders line will be very long, the waiting time can take longer. Sorry, it is handmade and pottery needs several steps. PAY ATTENTION: since the product is handmade the earrings will turn out similar but not identical.