1, Double-Sided Photo Album Refill Pages: Our photo sheet protector provides double capacity that you can put total 4 photos in both sides of the sheet. All 30 pages 2, Fit 6 Ring A5 Binder-These photo sleeves sheets with 6 punched holes fit any standard 6 Ring A5 Binder, And the sheet size is 6.1x7.6 inch,the pocket size is 3.5x5, they are suitable for all standard 6 Ring A5 Binder album,(Not fit for A6 binder, A4 binder, A5 mini 3 ring binder) 3, Premium Quality: The photocard sleeves are made of durable quality polypropylene with ultrasonic welding technology which make them tear-resistant, non-toxic, no PVC, harmless for your pictures 4, Ultra-Clear and Water/Dust Proof: The see-through photo pages allows you see your pictures clearly without taking them out. Your precious photos will always as new when you keep them in these waterproof and dustproof pockets 5, Top Loading: Top loading pockets for you inserting or taking out with easy access, and photos would not fall out as long as you keep photo sheet protector flat or upright