Each Pioneer ST-400 3-Ring Photo Album has clear 2-up plastic pockets with a white paper background. 3-ring binder with 1-1/2" D-rings. Holds two 4x6 photos per page. Album capacity is 400 photos. Memo area between photos. Dimensions: 8-3/8" x 10-7/8". Available in solid color covers and designer covers. Replacement pages also available separately. Pioneer photo albums are archival, acid free, photo safe.