Cover material: paper cover (printed) 2. Inside page: PP inner core, PP transparent film 3. Universal for 5-inch plastic photos 4. Number of photos: 300 photos in a single copy 5. Uniform inner core, natural page turning 6. Interstitial design, simple and convenient 7. Size: 34CM on the long side, 17CM on the short side, 4CM in thickness 8. Gross weight: 0.72KG/book