Pioneer - Post Bound Buff Pages - Refill Pack 20 Buff Pages, 10 Sheets. This refill is for Pioneer Style no. SJ-50 screw post bound scrapbooks. It contains 20 jumbo 11.75x14 inch buff color paper pages (10 sheets) and is ideal for larger memorabilia. Also fits Pioneer SJ-100 and SJ-100K scrapbooks. Archival, photo safe; acid and PVC free.