DOUBLESIDED PHOTO ALBUM REFILL PAGES Our photo sheet protector provide double capacity that you can put total 12 photos in both sides of the sheet All 20 pages provide total 240 pockets capacity They are perfect for holding standard 4x6 pictures and postcards TOPCLFIT 3 RING BINDERThese photo sleeves sheets with 3 punched holes fit any standard 3 ring binder And the sheet size is 132x127 inch they are suitable for your big binder albumASS MATERIAL AND CRAFTING Our photo sleeves binder sheets are made of 20C 02mm highquality polypropylene with reinforced heatsealed seams technology which make them durable and sturdy acidfree nontoxic no PVC nonstick and nonglare harmless for your precious photos and postcards SIDE LOADING POCKETS Side loading pockets are easy for you inserting or taking out pictures and photos would not fall out as long as you keep card protector sheets flat or upright ULTRACLEAR AND WATERDUST PROOF The seethrough photo protector allows you see your pictures clearly without taking them out Your precious photos and postcard will always as new when you keep them in these waterproof and dustproof pockets