Oregon Lamination Hot Laminating Pouches Luggage Tag (pack of 100) 10 mil 2-1/2 x 4-1/4 Blue/Clear with Slot Easily Create Highly Visible Color ID Badges, Proximity Cards & Hang Holders Tags Have Oval Slot Shaped Hole on One Short Side to accept Fastener up to  wide x 1/8 thick (Fastener not included) Transparent Blue Glossy Finish one side and Clear Glossy Finish other side and Rounded Corners for a Professional Finish Package Includes at least 1 silicone coated laminating carrier for Laminators that Require Them 2.5 x 4.25-inches and 10 mil thick; Metric 64mm X 108mm and 250 microns thick