Itoya Itoya Polyglass Pages 8 1/2 In. X 11 In. Pack Of 10 Portfolios & Archival Storage

These Professional Quality Refillable Page Sheets Are Made To Be Used With The Art Profolio Multi-Ring Binders As Well As Other Standard Multi-Ring Binders.The Exclusive Polyglass Polypropylene Material Has Standard Multi-Ring Binder Holes, And Is Acid Free And Archival Safe. Each Page Has An Acid-Free Paper Insert And A Unique Rigid Spine Weld Designed For Easy Insertion Into Binders. Available In Vertical And Horizontal Formats.