This package contains 20 premium pocket-style sheet protectors (10 each of two mixed pocket styles) that are compatible with most 3-ring style 12 x 12 albums. The first style features horizontal 4x6 slots with vertical 3x4 slots. The second style features vertical 4x6 slots with horizontal 3x4 slots. Strong seams and heavyweight, archival safe materials will protect your photos and memorabilia. Imported.