DayMark IT112332 DuraMark Circle Permanent Label, 1" Diameter, Black (Roll of 1000) 1" blank solid circle label may be written on, and is perfect in situations where color-coding is required Permanent self-adhesive works on any surface Working temperature range -40 to 160 degrees F Moisture resistant and safe for the freezer; Ideal for use for disposable containers, boxes and portion bags Also can be used for labeling documents, inventory, calendars and more