Seal and Key ID Hologram Butterfly Pouches - 10 Pack 7 Mil Butterfly Pouches With Built-in Hologram! Use With Teslin To Create An ID Card With A Hologram With No HASTLE Multi-spectrum Hologram (All Colors Of The Rainbow) Shows Different Images At Different Angles (Seals In One Direction, Keys In The Other Direction) Adds Security And Authenticity To Your ID Badges