
How to store trading cards
A sleeve, a rigid holder, the right binder and a dry, dark place — four things that keep a card the way it arrived.

A sealed product is a booster, a display, a set or a figure in factory packaging nobody has opened. For a collector it is the promise that the contents are exactly what the maker put there, and that nobody has picked through them.
Sealed products often grow scarcer over time: once a box is opened it is never "new" again. So the factory wrap and intact seals are part of the value, not just packaging.
Do not open it, and photograph the packaging from every side. An opened product can no longer be judged as sealed, and the photos help the seller look into it. At Hobby Kolosa, write to support with such questions and include your order number.

A sleeve, a rigid holder, the right binder and a dry, dark place — four things that keep a card the way it arrived.

Five simple rules for collecting with joy and without overspending.