These refill pages are for the Pioneer WF-5781 Oval Framed Wedding Album and will also fit in any Standard Size 3-Ring Binder. - 5 sheets per pack - Optically clear pockets hold 20 photos up to 5x7 - Side-loading from center of book - Shaded paper page background with memo area - 3 holes spaced 4-1/4" apart - Includes extension posts for the WF-5781 photo album - Acid free, archival, photo safe