Evohold Antimicrobial Single Sided Portrait ID Card Holders - Navy Blue (Pack of 100)ANTIMICROBIAL ID CARD HOLDERS Keeping you safe and stopping cross contamination, our Antimicrobial Holders are made by us in the UK, they are fully Recyclable in your plastics bin at home or office, or you can send back to us, for closed loop recycling. They also have the Biomaster additive in them making them Antimicrobial. 1. Biomaster disrupts the bacteria cell from growing as it binds to the cell wall. 2. The Biomaster ions stop the bacteria cell