1-1/2 x 3-1/2 white labels fit thermal label printers using 1-inch cores and accepting 4-inch outer diameter rolls.
Corners of labels have a ⅛-inch radius.
There are perforations between labels and a ⅛-inch gap between labels.
There are 760 labels on a roll: Core of roll is 1-inch.
Labels have a glove-friendly adhesive.