We use a thick film to preserve the beauty of your photos with maximum clarity. Premium specifications with authentic bookbinding and slipcase with excellent light shielding properties. Dark and Silver 2 colors available, PP slipcase. Storage Paper Size: 2L Vertical / 5.0 x 7.0 inches (127 x 178 mm), LL Vertical / 5.1 x 7.5 inches (130 x 190 mm), Cover: Back Binding Pocket, Card: Medium Core/Black (3-layer structure), 10 sheets (20 prints) in a slipcase.