Compatible with LabelRange LP620/LP320 Label Printer and many other desktop label printers. Black,Product size:9.5''x5.5''x5.5''. Compatible with both rolls and fanfold (stack) labels. Easy to assemble with 4steps,Each package with one assembly drawing. Max label width 4 inches,Min inner core size 1 inch,Max outer diameter 6 inches. LabelRange Label Holder compatible both rolls and fanfold (stack) labels. It will keep your labels organized and provide a better printing status.