Graded cards are encapsulated in a plastic tamper-evident case. Card collectors will refer to the encapsulated Graded cardas being "Slabbed."
Slabbed - A term used to describe a professionally graded card that has been encapsulated in a sonically sealed card holder.
Popular card graders include PSA, BGS SGC and GAI.
For example After a PSA graded card is graded each card is sonically sealed inside a protective, tamper-evident PSA holder with a tagged label that shows its certification number, manufacturer, grade, date, unique bar code and player's name. This label appears above the card that is graded. "The card is Slabbed"
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