TIBM-L Teslin IBM/Data Card 1-up - Laser. This one-up Teslin sheet has one micro-perforated 2 5/16" x 3 1/4" Teslin card insert. The Teslin insert will remove cleanly from the sheet and when inserted into one of our IBM size Butterfly Laminating Pouches it will form a borderless rigid ID Card. The overall printer sheet size is 4" x 6". A template for this sheet is built into EspressoID software.