Bulk Pack Pioneer BSP Refill 120 Pages/60 Sheets for BSP-46 Photo Album - Refills hold 720 4" x 6" Photos Optically clear pockets hold 6 4x6 photos per page Side loading from center of album, Black mesh page background 2 holes spaced 7-1/4" apart, Page dimensions: 13-1/4" x 14" Acid free, archival, photo safe 120 Pages (60 Sheets), Bulk Packaging