This Dymo Compt. 30383 label roll comes with 12 rolls of 150 labels each, making it perfect for those who need a large quantity of address labels. The labels are 2.25 inches by 7 inches and are direct thermal labels, so no ribbon is required. The labels are specifically designed for internet postage and address labels and are compatible with most Dymo LabelWriter printers. The labels feature a permanent adhesive and have a 1 inch ID core size. They are made in the United States and are of high quality. These labels are perfect for businesses and individuals who need to ship products or send mail and want a reliable and efficient way to print labels.