These refills are for the Pioneer LM-100 Magnetic Style Photo Album. - Clear plastic overlay self-adhesive pages hold photos securely - 5 sheets per pack (10 sides) - Hold all size prints up to 5" x 7" - 3 holes spaced 4-1/4" apart - Overall page dimensions: 8-1/4" x 10-1/2" - Usable page area: 6-3/4" x 10-1/2" - Will also fit in most 3-ring binders - Acid free