CheckIn allows you to print two type of labels.
SRO Labels: OfficeSmart Labels ZR1214114 - 2.25" x 1.25" Removable Labels.
Product Labels: OfficeSmart Labels ZE1200100 - 2" x 1"
or
BETCKEY - 1.25" x 1" or any other label of this dimension.
BETCKEY - 1.25" x 1" or any other label of this dimension.