Items changing magazine

An exchangeable magazine (1) designed to be releasably inserted in a storage shelf (54) and comprising two side walls (3, 4) interconnected via webs (5), with items (2) to be stacked therebetween in superimposed manner, the side walls (3, 4) including lower, inwardly angled end portions (17) for supporting the item stack, characterized in that the mutual distance between the side walls (3, 4) is adaptable to the width (B) of the items (2) via the webs which are releasably connected with at least one side wall (3, 4), at least one guide rail (18) extending in parallel to the side walls (3, 4) and capable of engaging the item stack over the height thereof, the at least one guide rail being mounted so as to be displaceable in the direction of the depth(T) of the items (2), and a guide ledge (23) arranged within the guide rail (19) so as to be displaceable in the direction of the height (H) of the items (2).