Specifications for B-Craft 30L Convection Oven for printing cups and bottles Capacity: 30 liters 360-degree convection airflow Four upper and lower heating tubes for even and fast distribution Four-sided enameled interior cavity for heat stability Ceramic inner lining Digital temperature and time control system Large display screen with easy-to-operate control column High-efficiency cooling system Three-sided heat-resistant cover Drop-down door with pull-out tray Internal lighting lamp Audible alert when the set time is reached and when finished Prints up to: 12 cups capacity 325 ml (approx. 11 oz) 6 cups capacity 440 ml (approx. 15 oz) 8 stainless steel cups capacity 590 ml (approx. 20 oz) 3 large cups capacity 880 ml (approx. 30 oz) Suitable for cups, large bottles, irregular mugs Shrink wrap or specialized paper for each cup or material must be used