Baseball card holders are containers designed to protect baseball cards from the kind of wear and tear which will reduce their value. They also help a collector transport and store their baseball cards. Here are some examples of baseball card holders.
Acrylic Card Cases
These are clear plastic hinged cases with snap closure which hold somewhere between fifteen and 250 cards. If you buy them in lots of at least ten they should cost between about sixty cents each for the smallest acrylic cases to closer to three dollars for the large two hundred card plus models. While this wouldn’t be the optimal storage for a very expensive, high grade card, acrylic plastic card cases are not a bad place to store a collection of cards that are worth a bit more than “common.”