My pharmacist told me not to laminate my vaccination card yet I was worried about it getting damaged by water or being pulled out of my purse all the time. This solves everything. Nice thick, clear PVC it opens up like a ziplock bag so the card can be inserted and removed easily. It has punches so you could put it on a lanyard. The price for 5 is cheaper than laminating one. I think it's a useful product at a great price.