- Binding: Hot pressing 2. Specifications: 4R/6 inch 200 sheets A set of four books can hold 800 photos 3. Material: paper cover (printing), PP inner core, PP transparent film 4. Size: long side: 23 cm, short side: 17 cm, thickness: 4 cm 5. Gross weight: 0.6 kg / book 6. Package include: 1 x Photo Album