photo albums: 12-at-a-time refills for your post-bound albums. 6 clear pockets on each side open to display 12 photos at a time. 5 sheets per pack Optically clear top-loading pockets hold 60 3-1/2x5 photos White mesh page background with memo area 2 holes spaced 8" apart Includes 2 extension posts for the MP-300 photo album Page dimensions 12-1/2" x 12-3/4" Acid free archival photo safe Priced in individual packages; sold in 2"s to save you shipping . Produced and certified by Pioneer® makers of albums for generations. 023602012042 - MPR/MPR300