These scrapbook refill pages are for Pioneer Standard and Deluxe E-Z Load Memory Books and also fit most 2 hole post, 3-ring or strap style scrapbooks including Webway, Creative Memories and others. - Made of 2.75 mil polypropylene - Includes 5 heavy weight black page inserts and 5 top-loading seamless sheet protectors - Also includes post extenders that screw onto Memory Book to allow for new pages - 3 holes spaced 4-1/4" apart - Archival, photo safe - acid, lignin and PVC-free, pH neutral