About This 4x4 Photo Sleeves: Crystal Clear plastic pages with 9 top-loading pockets, perfect for adding 4''x4'' photos to scrapbook Top Loading: Each refill page contains 16 square pockets. You can easily display 450 photos, postcards, kids’ art, or other collectibles to scrapbook albums Suitable Size: The photo album sleeves fit 3 ring scrapbook binder and the recommended minimum album size is 13.5"W × 13.1"H. Please note that the sleeves are slightly larger than usual 12x12 ones and they may bigger than compact scrapbook binder. Please check the size before purchase Heavyweight: Made of 3.1mil PP material, the photo sleeves are durable and practical for collecting your photos Archival Safe: Quality 4x4 scrapbook page protectors constructed of sturdy, non-stick PP and the sleeves will not lift off ink Overview Material : Polypropylene (PP) Brand : tutata Color : Clear Style : Protective Sleeves Item Weight : 0.43 Kilograms