Encased cards come pre-packaged inside a protective case — sealed by the manufacturer before you ever touch them. Unlike slabbed cards that go through a grading process, encased cards are sealed at the factory as part of the product's design.
Encased products are typically premium or ultra-premium lines where the cards are valuable enough to warrant built-in protection from the start. The case keeps the card in pristine condition from the moment it leaves the production line to the moment you open your box.
Some encased cards come with the manufacturer's own condition assessment printed on the case. They're ready to display, ready to store, and protected without any additional supplies needed on your end.