PIONEER-Scrapbook Spacers. These are necessary and fantastic additions for any scrapbooker who loves to layer their layouts. Each spacer adds 2mm between pages to make extra room for dimensional layouts with gems; chipboard; foam and more! Can be used individually or several for those pages that need even more room. Spacers work with 3 ring binders; 3 postbound or staple-strap 12x12in and 11x8-1/2in albums. Package contains 12 sets. Constructed of corrugated paper board. Archival quality; acid free and photo safe. Imported.