a scent delivery system in the form of a scent sampling card in which a fragrance / oil of a scented nature is encapsulated in the form of microscopic beads or scent of scented oil encased in a gelatinous or plastic cell wall , the encapsulation protects the microscopic beads and the scent or fragrance from escaping or migrating out of the card until its intended time of use , and holds both ply closed by bonding to both halves . the card comprises a two ply substrate which sandwiches the area of encapsulated fragrance within . the two ply substrate can be formed of paper stock , or paper stock and another substance , such as a laminate . once the card is opened , the encapsulation is penetrated , and the capsules of fragrance and scent are ruptured or break open exposing and emitting the fragrance .