Our own Zetta Florence designed and trademarked Image Portfolio? is a rigid Polypropylene binder & slipcases system that provides complete protection and easy access for document and photographic collections. Made of inert polypropylene, the binder & slipcase combination creates a dust and light proof storage system that safely houses documents and prints up to A4. The 3 ring binder accommodates our hole-punched polyester and polypropylene sleeves. Used in conjunction with hole-punched sleeves, archival card-supports and photo-corners, these binders safely and attractively protect a wide range of photographic material, ephemera and documents to produce a true archival environment. Passes the PAT. 3 Rings are powder coated with a solvent-free synthetic polymer that does not off-gas.