Good product, could be better if...
These reference cards are great for a nursing student, like myself, who needs quick answers or quick reference. What would make this product even better would be if you could add reference cards to the key-chain set. I tried to pry the black clip open to add the other cards I already had, and almost broke my fingers! That is my only complaint, if that was available, I would give 5 stars.
Rating: 3 stars