Advantus RFID Blocking Badge Holder - Support 3.38in x 2.13in Media - Vertical, Horizontal - Vinyl - 20 / Pack - Clear - Removable

Insert dimensions: 3-3/8inW x 2-1/8inH Envelopes card for longer wear Thumb access for easy removal and replacement of cards Versatile horizontal or vertical orientation Keeps up to 2 cards visible while protects them from intrusive communication