One of our Star labels is the compatible TSP700-800 50mm x 25mm. These labels are made of thermal material with a removable adhesion. Thermal material means that the labels have to be printed with a thermal printer, the Star TSP800. Thermal labels change colour when exposed to heat, so no ink is needed. This printer comes with a 25mm core. The core is very important for your printer. When in doubt, please contact us. The compatible Star labels TSP700-800 50mm x 25mm are multifunctional labels.