We R Memory Keepsake Pockets are designed specifically for your lasting scrapbook projects. Made of ultra-clear, super heavyweight polypropylene with durable, reinforced edges. Fuse Multi Pack 12pc- Includes four each 6"x 4", 4"x 4", and 2"x 2" keepsake pockets. Features low glare, ultra clear film that is acid free, PVC free, and archival quality. Premium heavyweight pockets will not stick to photographs, memorabilia or photocopies. Pockets have a dual circle and string closure. Use with Fuse Tool, sold separately.