pp inner we guarantee the excellent quality , and best competative price. pp inner 1.Material : paper cover ,0.16mm pp inner 2. Specification: 4"x 6", 5"x 7", or others as client's requirements. 3. 2-up , 50 inner pages for 200 photos .,or as your requirement . . 4.Various colors, sizes, designs are available. 5.Customer's LOGO can be printed for promotion and advertisement.