PDC Healthcare Blank Label Thermal Label White Paper 1 X 2 Inch (1159185_CS) 10400/CS1 x 2 inch white labels fit thermal label printers using 1 inch cores and accepting 4 inch outer diameter rolls. Corners of labels have a ? inch radius. There are perforations between labels and a ? inch gap between labels. There are 1,300 labels on a roll: Core of roll is 1 inch. Labels have a glove friendly adhesive.