PURPOSE: To easily contain an article and also easily unseal the pack to simplify the differential recovery.

CONSTITUTION: The ends of opposite two sides in the flange 22 of a blister body 2 are bent back rearwards to form grooves. The base board 3 is slid along the groove. A hole 25 is made in the flange 22 and a cut part 31, forming a projection by pressing, is provided on the base board 3 at the position corresponding to the hole 25. It is also preferable that a hole is provided on the base board 3 and a cut part 31 is provided on the flange 22 of the blister body 2. The blister body 2 and the base board 3 are fixed by fitting the projection into the hole 25 by pressing the cut part 31. When the projection is removed from the hole 25, the blister body 2 and the base board 3 can be slid. This blister pack is made of only paper and plastics and both are not applied with an adhesive and hence, the differential recovery is simple.